From owner-public@setileague.org Fri Jul 1 06:09:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j61D9qUw012047 for ; Fri, 1 Jul 2005 06:09:53 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id IAA27831 for public-list; Fri, 1 Jul 2005 08:50:06 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f6.bay103.hotmail.com [65.54.174.16]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id IAA27827; Fri, 1 Jul 2005 08:50:04 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 1 Jul 2005 05:49:32 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Fri, 01 Jul 2005 12:49:32 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Tom Cruise - Alien Life Expert Date: Fri, 01 Jul 2005 08:49:32 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 01 Jul 2005 12:49:32.0635 (UTC) FILETIME=[53F03AB0:01C57E3B] Sender: owner-public@setileague.org Precedence: bulk Sadly, I guess, he does make a good if well-worn point (about the odds of life beyond Earth, not the other stuff). But coming from this actor who thinks he's a medical expert (what is it with actors these days thinking they know everything from politics to science?), it will only open up more public ridicule to what is one of humanity's greatest questions. http://entertainment.msn.com/movies/hotgossipb2 "Are you really so arrogant as to believe we are alone in this universe?" So snipped Cruise to the German newspaper Bild as he continued his nonstop plugging of Steven Spielberg's mondo-budgeted alien invasion flick. "Millions of stars, and we're supposed to be the only living creatures? No, there are many things out there. We just don't know." Tom's sister-turned-ineffectual-publicist Lee Anne DeVette cops to him making the comments, but says they are in no way related to his (and her) belief system, which involves an intergalactic ruler named Xenu blowing up a bunch of aliens on Earth millions of years ago. Or something. "I'm happy to tell you it has absolutely nothing to do with Scientology," she explains to USA Today. According to DeVette, Cruise was simply saying, "Who are we to think we're the only people, the only life forms that exist anywhere? He clearly said he has never seen aliens." (Try something -- just say that last sentence out loud. Sounds ridiculous, right? And this is from his publicist. His publicist, people!) From owner-public@setileague.org Fri Jul 1 07:42:10 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j61Eg9Uw005430 for ; Fri, 1 Jul 2005 07:42:10 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id KAA00147 for public-list; Fri, 1 Jul 2005 10:23:58 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f4.bay103.hotmail.com [65.54.174.14]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id KAA00143; Fri, 1 Jul 2005 10:23:56 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 1 Jul 2005 07:23:24 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Fri, 01 Jul 2005 14:23:24 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org, bioastro@setileague.org Subject: SETI public: Optical SETI with Imaging Cherenkov Telescopes Date: Fri, 01 Jul 2005 10:23:24 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 01 Jul 2005 14:23:24.0997 (UTC) FILETIME=[71167750:01C57E48] Sender: owner-public@setileague.org Precedence: bulk Paper: astro-ph/0506758 Date: Thu, 30 Jun 2005 14:19:16 GMT (97kb) Title: Optical SETI with Imaging Cherenkov Telescopes Authors: J. Holder, P. Ashworth, S. LeBohec, H.J. Rose, T.C. Weekes Comments: 4 pages. Submitted to the 29th ICRC, Pune \\ The idea of searching for optical signals from extraterrestrial civilizations has become increasingly popular over the last five years, with dedicated projects at a number of observatories. The method relies on the detection of a brief (few ns), intense light pulse with fast photon detectors. Ground-based gamma-ray telescopes such as the Whipple 10m, providing a large mirror area and equipped with an array of photomultiplier tubes (PMTs), are ideal instruments for this kind of observation if the background of cosmic-ray events can be rejected. We report here on a method for searching for optical SETI pulses, using background discrimination techniques based on the image shape. \\ ( http://arXiv.org/abs/astro-ph/0506758 , 97kb) From owner-public@setileague.org Fri Jul 1 07:58:54 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j61EwlUw024458 for ; Fri, 1 Jul 2005 07:58:52 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id KAA00525 for public-list; Fri, 1 Jul 2005 10:40:30 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f29.bay103.hotmail.com [65.54.174.39]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id KAA00521; Fri, 1 Jul 2005 10:40:28 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 1 Jul 2005 07:39:56 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Fri, 01 Jul 2005 14:39:56 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Latest papers on exoplanets and circumstellar disks (2) Date: Fri, 01 Jul 2005 10:39:56 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 01 Jul 2005 14:39:56.0744 (UTC) FILETIME=[C0370C80:01C57E4A] Sender: owner-public@setileague.org Precedence: bulk Paper: astro-ph/0506738 Date: Wed, 29 Jun 2005 20:00:31 GMT (134kb) Title: Survey for Transiting Extrasolar Planets in Stellar Systems. II. Spectrophotometry and Metallicities of Open Clusters Authors: J. L. Marshall, Christopher J. Burke, D. L. DePoy, Andrew Gould, and Juna A. Kollmeier (The Ohio State University) Comments: 38 pages, including 12 figures. Accepted for publication in AJ \\ We present metallicity estimates for seven open clusters based on spectrophotometric indices from moderate-resolution spectroscopy. Observations of field giants of known metallicity provide a correlation between the spectroscopic indices and the metallicity of open cluster giants. We use \chi^2 analysis to fit the relation of spectrophotometric indices to metallicity in field giants. The resulting function allows an estimate of the target-cluster giants' metallicities with an error in the method of \pm0.08 dex. We derive the following metallicities for the seven open clusters: NGC 1245, [m/H]=-0.14\pm0.04; NGC 2099, [m/H]=+0.05\pm0.05; NGC 2324, [m/H]=-0.06\pm0.04; NGC 2539, [m/H]=-0.04\pm0.03; NGC 2682 (M67), [m/H]=-0.05\pm0.02; NGC 6705, [m/H]=+0.14\pm0.08; NGC 6819, [m/H]=-0.07\pm0.12. These metallicity estimates will be useful in planning future extra-solar planet transit searches since planets may form more readily in metal-rich environments. \\ ( http://arXiv.org/abs/astro-ph/0506738 , 134kb) ------------------------------------------------------------------------------ \\ Paper: astro-ph/0506743 Date: Wed, 29 Jun 2005 21:31:43 GMT (67kb) Title: Spitzer Observations of G Dwarfs in the Pleiades: Circumstellar Debris Disks at 100 Myr Age Authors: J.R. Stauffer, L. Rebull (Spitzer Science Center), J. Carpenter, L. Hillenbrand (Caltech), D. Backman (NASA-Ames), M.R. Meyer, J.S. Kim, M.D. Silverstone and E. Young (Steward Observatory, UofA), D.C. Hines (SSI), D.R. Soderblom (STScI), E.E. Mamajek (Harvard-Smithsonian CfA), P. Morris (SSC), J. Bouwman (MPIA-Heidelberg), S.E. Strom (NOAO) Comments: 32 postscript pages including 8 figues and 3 tables. To appear in the Astronomical Journal \\ Fluxes and upper limits in the wavelength range from 3.6 to 70 microns from the Spitzer Space Telescope are provided for twenty solar-mass Pleiades members. One of these stars shows a probable mid-IR excess and two others have possible excesses, presumably due to circumstellar debris disks. For the star with the largest, most secure excess flux at MIPS wavelengths, HII1101, we derive Log(L[dust]/L[Sun]) ~ -3.8 and an estimated debris disk mass of 4.2 x 10^-5 M(Earth) for an assumed uniform dust grain size of 10 microns If the stars with detected excesses are interpreted as stars with relatively recent, large collision events producing a transient excess of small dust particles, the frequency of such disk transients is about ~ 10 % for our ~ 100 Myr, Pleiades G dwarf sample. For the stars without detected 24-70 micron excesses, the upper limits to their fluxes correspond to approximate 3 sigma upper limits to their disk masses of 6 x 10^-6 M(Earth) using the MIPS 24 micron upper limit, or 2 x 10^-4 M(Earth) using the MIPS 70 micron limit. These upper limit disk masses (for "warm" and "cold" dust, respectively) are roughly consistent, but somewhat lower than, predictions of a heuristic model for the evolution of an "average" solar-mass star's debris disk based on extrapolation backwards in time from current properties of the Sun's Kuiper belt. \\ ( http://arXiv.org/abs/astro-ph/0506743 , 67kb) From owner-public@setileague.org Mon Jul 4 09:58:58 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j64Gwtq7017381 for ; Mon, 4 Jul 2005 09:58:58 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id MAA19069 for public-list; Mon, 4 Jul 2005 12:41:56 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav14.bay103.hotmail.com [65.54.174.86]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id MAA19065; Mon, 4 Jul 2005 12:41:53 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 4 Jul 2005 09:41:22 -0700 Message-ID: Received: from 65.54.174.200 by BAY103-DAV14.phx.gbl with DAV; Mon, 04 Jul 2005 16:41:21 +0000 X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: Terrestrial Planet Formation in Disks with Varying Surface Density Profiles Date: Mon, 4 Jul 2005 12:41:20 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0163_01C58095.ADFDC8E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 4 Jul 2005 12:41:20 -0400 X-OriginalArrivalTime: 04 Jul 2005 16:41:22.0335 (UTC) FILETIME=[360142F0:01C580B7] Sender: owner-public@setileague.org Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0163_01C58095.ADFDC8E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Paper: astro-ph/0507004=20 Date: Thu, 30 Jun 2005 20:59:36 GMT (437kb)=20 Title: Terrestrial Planet Formation in Disks with Varying Surface = Density=20 Profiles Authors: Sean N. Raymond (1), Thomas Quinn (1), and Jonathan I. Lunine = (2) ((1)=20 Department of Astronomy, University of Washington, Seattle, WA; (2) = Lunar and=20 Planetary Laboratory, University of Arizona, Tucson, AZ)=20 Comments: 10 pages, 5 figures in emulateapj style. tp appear in Oct 20, = 2005,=20 issue of ApJ=20 \\=20 The ``minimum-mass solar nebula'' (MMSN) model estimates the surface = density=20 distribution of the protoplanetary disk by assuming the planets to have = formed=20 in situ. However, significant radial migration of the giant planets = likely=20 occurred in the Solar system, implying a distortion in the values = derived by=20 the MMSN method. The true density profiles of protoplanetary disks is = therefore=20 uncertain. Here we present results of simulations of late-stage = terrestrial=20 accretion, each starting from a disk of planetary embryos. We assume a=20 power-law surface density profile that varies with heliocentric distance = r as=20 r^-alpha, and vary alpha between 1/2 and 5/2 (alpha =3D 3/2 for the MMSN = model).=20 We find that for steeper profiles (higher values of alpha), the = terrestrial=20 planets (i) are more numerous, (ii) form more quickly, (iii) form closer = to the=20 star, (iv) are more massive, (v) have higher iron contents, and (vi) = have lower=20 water contents. However, the possibility of forming potentially = habitable=20 planets does not appear to vary strongly with alpha. \\ ( http://arXiv.org/abs/astro-ph/0507004 , 437kb) ------=_NextPart_000_0163_01C58095.ADFDC8E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Paper: = astro-ph/0507004=20
Date: Thu, 30 Jun 2005 20:59:36 GMT (437kb)=20

Title: Terrestrial Planet Formation in Disks with Varying Surface = Density=20
Profiles

Authors: Sean N. Raymond (1), Thomas Quinn (1), and Jonathan I. = Lunine (2)=20 ((1)
Department of Astronomy, University of Washington, Seattle, WA; = (2)=20 Lunar and
Planetary Laboratory, University of Arizona, Tucson, AZ)=20
Comments: 10 pages, 5 figures in emulateapj style. tp appear in Oct = 20,=20 2005,
issue of ApJ
\\
The ``minimum-mass solar nebula'' = (MMSN) model=20 estimates the surface density
distribution of the protoplanetary = disk by=20 assuming the planets to have formed
in situ. However, significant = radial=20 migration of the giant planets likely
occurred in the Solar system, = implying=20 a distortion in the values derived by
the MMSN method. The true = density=20 profiles of protoplanetary disks is therefore
uncertain. Here we = present=20 results of simulations of late-stage terrestrial
accretion, each = starting=20 from a disk of planetary embryos. We assume a
power-law surface = density=20 profile that varies with heliocentric distance r as
r^-alpha, and = vary alpha=20 between 1/2 and 5/2 (alpha =3D 3/2 for the MMSN model).
We find that = for=20 steeper profiles (higher values of alpha), the terrestrial
planets = (i) are=20 more numerous, (ii) form more quickly, (iii) form closer to the =
star, (iv)=20 are more massive, (v) have higher iron contents, and (vi) have lower =
water=20 contents. However, the possibility of forming potentially habitable =
planets=20 does not appear to vary strongly with alpha.

\\ ( http://arXiv.org/abs/astro-ph/0507004 , 437kb)

------=_NextPart_000_0163_01C58095.ADFDC8E0-- From owner-public@setileague.org Mon Jul 4 10:00:52 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j64H0nq7028352 for ; Mon, 4 Jul 2005 10:00:51 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id MAA19166 for public-list; Mon, 4 Jul 2005 12:44:54 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav11.bay103.hotmail.com [65.54.174.83]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id MAA19161; Mon, 4 Jul 2005 12:44:52 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 4 Jul 2005 09:44:21 -0700 Message-ID: Received: from 65.54.174.200 by BAY103-DAV11.phx.gbl with DAV; Mon, 04 Jul 2005 16:44:20 +0000 X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: Formation and Evolution of Planetary Systems: Placing Our Solar System in Context with Spitzer Date: Mon, 4 Jul 2005 12:44:19 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_016B_01C58096.1862B920" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 4 Jul 2005 12:44:19 -0400 X-OriginalArrivalTime: 04 Jul 2005 16:44:21.0124 (UTC) FILETIME=[A0924C40:01C580B7] Sender: owner-public@setileague.org Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_016B_01C58096.1862B920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Paper: astro-ph/0507034=20 Date: Fri, 1 Jul 2005 17:49:56 GMT (643kb)=20 Title: Formation and Evolution of Planetary Systems: Placing Our Solar = System=20 in Context with Spitzer Authors: Michael R. Meyer (Steward Observatory, The University of = Arizona), and=20 the FEPS Legacy Science Team=20 Comments: 8 postscript pages including 3 figures. To appear in "Spitzer = New=20 Views of the Cosmos" ASP Conference Series, eds. L. Armus et al. FEPS = website=20 at http://feps.as.arizona.edu=20 \\=20 We summarize the progress to date of our Legacy Science Program entitled = "The=20 Formation and Evolution of Planetary Systems" (FEPS) based on = observations=20 obtained with the Spitzer Space Telescope during its first year of = operation.=20 In addition to results obtained from our ground-based preparatory = program and=20 our early validation program, we describe new results from a survey for=20 near-infrared excess emission from the youngest stars in our sample as = well as=20 a search for cold debris disks around sun-like stars. We discuss the=20 implications of our findings with respect to current understanding of = the=20 formation and evolution of our own solar system. \\ ( http://arXiv.org/abs/astro-ph/0507034 , 643kb) ------=_NextPart_000_016B_01C58096.1862B920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Paper: = astro-ph/0507034=20
Date: Fri, 1 Jul 2005 17:49:56 GMT (643kb)=20

Title: Formation and Evolution of Planetary Systems: Placing Our = Solar System=20
in Context with Spitzer

Authors: Michael R. Meyer (Steward Observatory, The University of = Arizona),=20 and
the FEPS Legacy Science Team
Comments: 8 postscript pages = including=20 3 figures. To appear in "Spitzer New
Views of the Cosmos" ASP = Conference=20 Series, eds. L. Armus et al. FEPS website
at = http://feps.as.arizona.edu=20
\\
We summarize the progress to date of our Legacy Science = Program=20 entitled "The
Formation and Evolution of Planetary Systems" (FEPS) = based on=20 observations
obtained with the Spitzer Space Telescope during its = first year=20 of operation.
In addition to results obtained from our ground-based=20 preparatory program and
our early validation program, we describe = new=20 results from a survey for
near-infrared excess emission from the = youngest=20 stars in our sample as well as
a search for cold debris disks around = sun-like stars. We discuss the
implications of our findings with = respect to=20 current understanding of the
formation and evolution of our own = solar=20 system.

\\ ( http://arXiv.org/abs/astro-ph/0507034 , 643kb)


------=_NextPart_000_016B_01C58096.1862B920-- From owner-public@setileague.org Mon Jul 4 10:27:57 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j64HRtq7009527 for ; Mon, 4 Jul 2005 10:27:56 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id NAA19910 for public-list; Mon, 4 Jul 2005 13:09:52 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav8.bay103.hotmail.com [65.54.174.80]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id NAA19906; Mon, 4 Jul 2005 13:09:49 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 4 Jul 2005 10:09:18 -0700 Message-ID: Received: from 65.54.174.200 by BAY103-DAV8.phx.gbl with DAV; Mon, 04 Jul 2005 17:09:18 +0000 X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: A Transiting Hot Saturn Around HD 149026 With a Large Dense Core Date: Mon, 4 Jul 2005 13:09:17 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01A6_01C58099.95292360" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 4 Jul 2005 13:09:17 -0400 X-OriginalArrivalTime: 04 Jul 2005 17:09:18.0755 (UTC) FILETIME=[1D3AA730:01C580BB] Sender: owner-public@setileague.org Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_01A6_01C58099.95292360 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Paper: astro-ph/0507009=20 Date: Thu, 30 Jun 2005 23:26:10 GMT (122kb)=20 Title: The N2K Consortium. II. A Transiting Hot Saturn Around HD 149026 = With a=20 Large Dense Core Authors: B. Sato, D. A. Fischer, G. W. Henry, G. Laughlin, R. P. Butler, = G. W.=20 Marcy, S. S. Vogt, P. Bodenheimer, S. Ida, E. Toyota, A. Wolf, J. A. = Valenti,=20 L. J. Boyd, J. A. Johnson, J. T. Wright, M. Ammons, S. Robinson, J. = Strader,=20 C. McCarthy, K. L. Tah, D. Minniti=20 Comments: 25 pages, 5 figures, accepted by the Astrophysical Journal=20 \\=20 Doppler measurements from Subaru and Keck have revealed radial velocity=20 variations in the V=3D8.15, G0IV star HD 149026 consistent with a = Saturn-Mass=20 planet in a 2.8766 day orbit. Photometric observations at Fairborn = Observatory=20 have detected three complete transit events with depths of 0.003 mag at = the=20 predicted times of conjunction. HD 149026 is now the second brightest = star with=20 a transiting extrasolar planet. The mass of the star, based on = interpolation of=20 stellar evolutionary models, is 1.3 +/- 0.1 solar masses; together with = the=20 Doppler amplitude, K=3D43.3 m s^-1, we derive a planet mass = Msin(i)=3D0.36 Mjup,=20 and orbital radius of 0.042 AU. HD 149026 is chromospherically inactive = and=20 metal-rich with spectroscopically derived [Fe/H]=3D+0.36, Teff=3D6147 K, = log g=3D4.26=20 and vsin(i)=3D6.0 km s^-1. Based on Teff and the stellar luminosity of = 2.72 Lsun,=20 we derive a stellar radius of 1.45 Rsun. Modeling of the three = photometric=20 transits provides an orbital inclination of 85.3 +/- 1.0 degrees and = (including=20 the uncertainty in the stellar radius) a planet radius of 0.725 +/- 0.05 = Rjup.=20 Models for this planet mass and radius suggest the presence of a ~67 = Mearth=20 core composed of elements heavier than hydrogen and helium. This = substantial=20 planet core would be difficult to construct by gravitational = instability. \\ ( http://arXiv.org/abs/astro-ph/0507009 , 122kb) ------=_NextPart_000_01A6_01C58099.95292360 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Paper: = astro-ph/0507009=20
Date: Thu, 30 Jun 2005 23:26:10 GMT (122kb)=20

Title: The N2K Consortium. II. A Transiting Hot Saturn Around HD = 149026 With=20 a
Large Dense Core

Authors: B. Sato, D. A. Fischer, G. W. Henry, G. Laughlin, R. P. = Butler, G.=20 W.
Marcy, S. S. Vogt, P. Bodenheimer, S. Ida, E. Toyota, A. Wolf, J. = A.=20 Valenti,
L. J. Boyd, J. A. Johnson, J. T. Wright, M. Ammons, S. = Robinson, J.=20 Strader,
C. McCarthy, K. L. Tah, D. Minniti
Comments: 25 pages, = 5=20 figures, accepted by the Astrophysical Journal
\\
Doppler = measurements=20 from Subaru and Keck have revealed radial velocity
variations in the = V=3D8.15,=20 G0IV star HD 149026 consistent with a Saturn-Mass
planet in a 2.8766 = day=20 orbit. Photometric observations at Fairborn Observatory
have = detected three=20 complete transit events with depths of 0.003 mag at the
predicted = times of=20 conjunction. HD 149026 is now the second brightest star with
a = transiting=20 extrasolar planet. The mass of the star, based on interpolation of =
stellar=20 evolutionary models, is 1.3 +/- 0.1 solar masses; together with the =
Doppler=20 amplitude, K=3D43.3 m s^-1, we derive a planet mass Msin(i)=3D0.36 Mjup, =
and=20 orbital radius of 0.042 AU. HD 149026 is chromospherically inactive and=20
metal-rich with spectroscopically derived [Fe/H]=3D+0.36, = Teff=3D6147 K, log=20 g=3D4.26
and vsin(i)=3D6.0 km s^-1. Based on Teff and the stellar = luminosity of=20 2.72 Lsun,
we derive a stellar radius of 1.45 Rsun. Modeling of the = three=20 photometric
transits provides an orbital inclination of 85.3 +/- 1.0 = degrees=20 and (including
the uncertainty in the stellar radius) a planet = radius of=20 0.725 +/- 0.05 Rjup.
Models for this planet mass and radius suggest = the=20 presence of a ~67 Mearth
core composed of elements heavier than = hydrogen and=20 helium. This substantial
planet core would be difficult to construct = by=20 gravitational instability.

\\ ( http://arXiv.org/abs/astro-ph/0507009 , 122kb)


------=_NextPart_000_01A6_01C58099.95292360-- From owner-public@setileague.org Wed Jul 6 05:57:07 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j66Cv6q7030763 for ; Wed, 6 Jul 2005 05:57:06 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id IAA28806 for public-list; Wed, 6 Jul 2005 08:37:29 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f1.bay103.hotmail.com [65.54.174.11]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id IAA28802; Wed, 6 Jul 2005 08:37:26 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Jul 2005 05:36:55 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 06 Jul 2005 12:36:55 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Is There Music in Space?--Yes Date: Wed, 06 Jul 2005 08:36:55 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Jul 2005 12:36:55.0678 (UTC) FILETIME=[64D281E0:01C58227] Sender: owner-public@setileague.org Precedence: bulk Seventh Biennial History of Astronomy Workshop University of Notre Dame Abstracts http://www.nd.edu/~histast4/ndviiinfo/abstractvii.html "Is There Music in Space?--Yes" Peter Henry Cheasley (Independent Scholar) Music recognition computer programs have become available. In 1996, the author of this poster paper, Peter Henry Cheasley VE2TPR, recognized that the noise coming in over his radio telescope, 3.5ghz , was music. The use of this recognition computer program permitted the immediate conversion of the incoming signal to musical notes based on the harmonic system of music. Version 3.0 introduced enharmonic notes into the recognition process and version 3.2 permits a more sensitive capacity . Radio telescope observations are recorded daily. Those of importance are submitted to The Seti League, P.O. Box 555, Little Ferry, NJ ,U.S.A., for peer review. See www.setileague.org. This fact that music exists in space is determined by practice. The future starts with two questions: Space and Planet Earth used the enharmonic music scale until 1300 AD: Why? Philippe de Vitry replaced the enharmonic scale with the harmonic music scale, in Europe: Why? From owner-public@setileague.org Wed Jul 6 06:02:12 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j66D2Aq7015353 for ; Wed, 6 Jul 2005 06:02:11 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id IAA29108 for public-list; Wed, 6 Jul 2005 08:43:25 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f33.bay103.hotmail.com [65.54.174.43]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id IAA29104 for ; Wed, 6 Jul 2005 08:43:23 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Jul 2005 05:42:52 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 06 Jul 2005 12:42:51 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Subject: SETI public: FW: AAVSO Alert Notice 320 Date: Wed, 06 Jul 2005 08:42:51 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Jul 2005 12:42:52.0180 (UTC) FILETIME=[39506540:01C58228] Sender: owner-public@setileague.org Precedence: bulk >From: aavso@aavso.org >To: aavso@aavso.org >Subject: AAVSO Alert Notice 320 >Date: Tue, 5 Jul 2005 17:31:45 -0400 (EDT) > > THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS > 25 Birch Street, Cambridge, MA 02138 USA > INTERNET: aavso@aavso.org > Tel. 617-354-0484 Fax 617-354-0665 > > AAVSO ALERT NOTICE 320 (July 5, 2004) > >SUBJECT: 1811-30 NOVA SAGITTARII 2005 NO. 2 > >Object: 1811-30 N SGR 05#2 > >Event: Nova in Sagittarius > >Discovered By: William Liller, Vina del Mar Chile (IAU Circular 8559) > >Discovery Magnitude: approximately 8.0 on two red photographs (85-mm >camera lens + Technical Pan film + deep orange filter) > >Discovery Date: July 4.049 UT > >Position: (2000.0) Reported by A. C. Gilmore and P. M. Kilmartin, Mt. >John Observatory (MJO), New Zealand, from an 0.4-s CCD exposure taken July >5.380 UT with the 1-m f/3.8 reflector at the University of Canterbury's >MJO and measured by Gilmore using 'Astrometrica' with UCAC2 stars (IAU >Circular 8559): > >R.A. = 18h 17m 50.77s >Decl. = -30o 26' 31.2" (equinox 2000.0) > >Spectra: A spectrum taken by Liller July 5.099 UT shows the object to be >a nova. > >AAVSO Chart(s): 'd' scale chart is available at: >http://www.aavso.org/cgi-bin/searchcharts3.pl?name=n%20sgr%2005%232 > >Report Object to the AAVSO as: 1811-30 N SGR 05#2 > >Observations Reported to the AAVSO: July 2.365 UT, <14.5V, ASAS-3 >(reported by S. Otero, Buenos Aires, Argentina); 5.014, 7.6, R. Shida, Sao >Paulo, Brazil; 5.08, 7.4 CCDV, B. Monard, Pretoria, South Africa; 5.08, >7.2 CCDRc, Monard; 5.085, 7.15 CCD, Liller; 5.1, 7.9 CCD, C. Jacques, Belo >Horizonte, Brazil (IAU Circular 8559); 5.123, 7.37V, ASAS-3 (reported by >Otero); 5.271, 8.0, M. Linnolt, Woodside, CA; 5.359, 8.0, J. Bedient, >Hololulu, HI; 5.438, 8.1, A. Pearce, Nedlands, W. Australia; 5.74, 8.6 >CCDV, Monard; 5.74, 8.1 CCDRc, Monard; 5.783, 8.5, T. Cooper, Bredell, >South Africa. > >Notes: >a. Nothing was visible down to about magnitude 11.0 at the location >of the nova on films taken by Liller on June 12; red photographs (85-mm >camera lens + Technical Pan film + deep orange filter). > >b. Photoelectric photometry by Kilmartin and Gilmore with the MJO 0.6-m >f/16 reflector in marginal conditions (occasional fog and low cloud >crossing): July 5.408 UT, 8.15V, U-B = -0.04, B-V = +0.48, V-R = +0.38, >V-I = +0.75, air mass 1.167; 5.456, 8.17V, U-B = +0.03, B-V = +0.46, V-R = >+0.33, V-I = +0.67, airmass 1.064 (comparison star Cousins' E749) (IAU >Circular 8559). > >c. For more information on N Sgr 05#2, please see IAU Circular 8559 (ed. >Daniel W. E. Green). > >Congratulations to Bill on his latest discovery! > >SUBMIT OBSERVATIONS TO THE AAVSO > >We encourage observers to submit observations via our web site (online >data submission tool WebObs), or by email in AAVSO format to >observations@aavso.org. If you do not have AAVSO Observer Initials, please >contact Headquarters so we may assign them to you. The answering machine >at AAVSO Headquarters is on nights and weekends; use our charge-free >number (888-802-STAR = 888-802-7827) to report your observations, or >report them via fax (617-354-0665). > >Many thanks for your valuable astronomical contributions and your efforts. > >Good observing! > >Elizabeth O. Waagen >Senior Technical Assistant > > From owner-public@setileague.org Wed Jul 6 06:43:57 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j66Dhuq7020974 for ; Wed, 6 Jul 2005 06:43:57 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id JAA00454 for public-list; Wed, 6 Jul 2005 09:26:12 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f32.bay103.hotmail.com [65.54.174.42]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id JAA00447; Wed, 6 Jul 2005 09:26:09 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Jul 2005 06:25:37 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 06 Jul 2005 13:25:36 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Four new wide binaries among exoplanet host stars Date: Wed, 06 Jul 2005 09:25:36 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Jul 2005 13:25:37.0743 (UTC) FILETIME=[32823DF0:01C5822E] Sender: owner-public@setileague.org Precedence: bulk Paper: astro-ph/0507101 Date: Tue, 5 Jul 2005 17:27:28 GMT (980kb) Title: Four new wide binaries among exoplanet host stars Authors: M. Mugrauer, R. Neuhaeuser, A. Seifahrt, T. Mazeh, E. Guenther Comments: 10 pages, 16 figures, A&A accepted \\ In our ongoing survey for wide (sub)stellar companions of exoplanet host stars we have found 4 new co-moving stellar companions of the stars HD114729, HD16141, HD196050 and HD213240 with projected separations from 223 up to 3898AU. The companionship of HD114729B, HD196050B and HD213240C is confirmed by photometry and spectroscopy, all being early M dwarfs. The masses of the detected companions are derived from their infrared JHK magnitudes and range between 0.146 and 0.363 Msun. Our first and second epoch observations can rule out additional stellar companions around the primaries from ~200 up to ~2400 AU (S/N=10). In our survey we have found so far 6 new binaries among the exoplanet host stars. According to these new detections, the reported differences between single-star and binary-star planets with orbital periods short than 40 days remain significant in both the mass-period and eccentricity-period distribution. In contrast, all exoplanets with orbital periods longer than 100 days tend to display similar distributions. \\ ( http://arXiv.org/abs/astro-ph/0507101 , 980kb) From owner-public@setileague.org Wed Jul 6 06:48:02 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j66Dm0q7029170 for ; Wed, 6 Jul 2005 06:48:01 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id JAA00552 for public-list; Wed, 6 Jul 2005 09:30:27 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f26.bay103.hotmail.com [65.54.174.36]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id JAA00548; Wed, 6 Jul 2005 09:30:25 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Jul 2005 06:29:54 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 06 Jul 2005 13:29:53 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Planetary Detection Efficiency of the Magnification 3000 Microlensing Event OGLE Date: Wed, 06 Jul 2005 09:29:53 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Jul 2005 13:29:54.0094 (UTC) FILETIME=[CB4E4CE0:01C5822E] Sender: owner-public@setileague.org Precedence: bulk Paper: astro-ph/0507079 Date: Tue, 5 Jul 2005 15:56:23 GMT (132kb) Title: Planetary Detection Efficiency of the Magnification 3000 Microlensing Event OGLE-2004-BLG-343 Authors: Subo Dong, D.L. DePoy, B.S. Gaudi, A. Gould, C. Han, B.-G. Park, R.W. Pogge (The microFUN Collaboration), A. Udalski, O. Szewczyk, M. Kubiak, M.K. Szymanski, G. Pietrzynski, I. Soszynski, L. Wyrzykowski, K. Zebrun (The OGLE Collaboration) Comments: 44 pages, 13 figures. Submitted to ApJ \\ OGLE-2004-BLG-343 was a microlensing event with peak magnification A_{max}=3000+/-1100, by far the highest-magnification event ever analyzed and hence potentially extremely sensitive to planets orbiting the lens star. Due to human error, intensive monitoring did not begin until 43 minutes after peak, at which point the magnification had fallen to A~1200, still by far the highest ever observed. As the light curve does not show significant deviations due to a planet, we place upper limits on the presence of such planets by extending the method of Yoo et al. (2004b), which combines light-curve analysis with priors from a Galactic model of the source and lens populations, to take account of finite-source effects. This is the first event so analyzed for which finite-source effects are important, and hence we develop two new techniques for evaluating these effects. Somewhat surprisingly, we find that OGLE-2004-BLG-343 is no more sensitive to planets than two previously analyzed events with A_{max}~100, despite the fact that it was observed at ~12 times higher magnification. However, we show that had the event been observed over its peak, it would have been sensitive to almost all Neptune-mass planets over a factor of 5 of projected separation and even would have had some sensitivity to Earth-mass planets. This shows that some microlensing events being detected in current experiments are sensitive to very low-mass planets. \\ ( http://arXiv.org/abs/astro-ph/0507079 , 132kb) From owner-public@setileague.org Wed Jul 6 09:10:20 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.12.6/8.12.6) with ESMTP id j66GAJq7031420 for ; Wed, 6 Jul 2005 09:10:19 -0700 (PDT) Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA04579 for public-list; Wed, 6 Jul 2005 11:49:35 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f13.bay103.hotmail.com [65.54.174.23]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA04575; Wed, 6 Jul 2005 11:49:32 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 6 Jul 2005 08:49:01 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 06 Jul 2005 15:49:00 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org, fpspace@friends-partners.org Cc: bioastro@setileague.org Subject: SETI public: NASA's Innovative Interstellar Explorer (IIE) Date: Wed, 06 Jul 2005 11:49:00 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 06 Jul 2005 15:49:01.0180 (UTC) FILETIME=[3A8E8BC0:01C58242] Sender: owner-public@setileague.org Precedence: bulk http://space.com/businesstechnology/050706_star_voyage.html Voyage to the Stars: NASA Study Mulls Options By Leonard David posted: 06 July 2005 06:41 am ET To send a spacecraft where none has gone before is a dream assignment for any space scientist and engineer. The idea of dispatching a dedicated robotic probe on an interstellar trek has been seriously advocated for nearly 30 years. A recently finished appraisal of how to build such a craft shows that it is within reach -- but nonetheless remains a challenging task. A NASA-sponsored study team has blueprinted an Innovative Interstellar Explorer (IIE). Goal of the IIE would be to plunge outward some 200 Astronomical Units. An astronomical unit (AU) is the mean distance between the center of the Earth and the center of the Sun - approximately 93 million miles (150 million kilometers). Put that in your cosmic calculator and you'll get: 18,591,186,595 miles (29,919,614,600 kilometers). No matter how you figure it, that's a lot of infrequent flyer miles to travel. Pull out all the stops "I think we're converging on something that's doable," said Ralph McNutt, the principal investigator for the Innovative Interstellar Explorer study. He is a space scientist at The Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Maryland, and also the project scientist for APL's Messenger mission to Mercury. If launched in 2014, the probe would arrive at the 200 AU distance in about 2044. Clearly, along with doses of technology and a requisite high velocity, IIE demands a good deal of patience from awaiting scientists here on Earth. McNutt said the IIE concept has moved forward over the last several years as a NASA Vision Mission project, through a Team X study group at Jet Propulsion Laboratory (JPL), and by way of NASA Institute for Advanced Concepts study grants. "There is always interest in keeping an interstellar probe going through various studies. But the problem that we've always run up against is propulsion. That's because you're trying to pull out all the stops and get out of the Solar System as fast as you can," McNutt told SPACE.com. Continuous acceleration In sketching out IIE, McNutt said the relatively small spacecraft would use radioisotope power sources that energize small electric thrusters. "You need to make a spacecraft that is Ômassless' as possible," he said, something akin to "unobtanium". Still, in taking a hard look at conjuring up an interstellar probe -- and the kind of science that could be done by the craft -- things do look promising. "We can start building them tomorrow, if we had the money," McNutt said. Efficient, lightweight electric propulsion and power systems are part of the key. The Innovative Interstellar Explorer would carry a compact science payload weighing all of 66 pounds (30 kilograms). It would be boosted from Earth atop a Delta 4 heavy launcher. A custom upper stage is also required. That initial launch energy in 2014 would push IIE to an arrival at Jupiter two years later where the probe would acquire a gravity assist from the massive planet. Long-term, low-thrust, continuous acceleration of the probe would be provided by a kilowatt-class ion thruster running off electricity provided by advanced Stirling radioisotope generators. Burnout speed The interstellar probe would cruise out of the solar system at about 7.8 AU per year. It would accelerate to a "burnout" speed of 9.5 AU per year at 103 AU in November 2029. In contrast, Voyager 1 is speeding about 3.6 AU per year. Its twin, Voyager 2, is a slow poke at about 3.3 AU per year. "The IIE would end up being at 200 AU in about 2044," McNutt noted. "Yes, I know that sounds like a long time from now. But you have to keep this into perspective. When we started out with the Voyagers, none would have believed they'd still be going," he said. In fact, the dual Voyager spacecraft launched in 1977 are now dubbed the Voyager Interstellar Mission (VIM), investigating the outermost edge of the Sun's domain ... and beyond. The Voyager probes are expected to go dead around 2025 as their plutonium-fueled generators are fully discharged. Decades of lifetime The 30-year mission by IIE to address fundamental scientific questions about the interaction of the Sun with the interstellar medium, McNutt said, can only be answered via on-the-spot measurements that such a mission would provide. "The idea here is to try to get as close to true interstellar space as possible ... past the heliopause and past what we think is an external bow shock," McNutt pointed out. But traveling for three decades to do so is tough going. "Designing something that's going to be good for 30 years ... that scares the daylights out of people," McNutt admitted. "How to qualify all the parts for decades of lifetime is a hard problem. But it's something that we're going to eventually come to terms with. We'll figure out how to deal with it." Receiver farms Pumping back science data from afar is also a challenge. And Earth will also have to keep up its end of the bargain. Already in the works is a hoped for upgrade of NASA's Deep Space Network, turning huge antenna dish complexes into "receiver farms" -- that is, multiple numbers of smaller antennas. That could enable reception of downlink signal from IIE of about five kilobytes per second out at 200 AU, McNutt said. At some point, as IIE keeps moving onward and outward, it will increasingly become more difficult for ground controllers on Earth to reprogram the spacecraft's onboard data processing unit. "The probe will then have to decide for itself when to phone home. It's not going to be you asking for the call," McNutt said. Pulling the plug on the Voyagers The recent chorus of disapproval about turning off the long-distance Voyager craft may be a good sign of support for interstellar probe development. The very idea of shutting down the venerable Voyager probes to save a few million dollars per year sparked public and Congressional comment. "I can't answer why there was an outcry," McNutt said, "but I'm certainly glad there was one." Indeed, Voyager 1 relayed in May evidence that it reached the heliosheath - an area just where the solar wind crashes into the thin interstellar gas of the galaxy. In a House of Representatives hearing last month, Congressman Vernon Ehlers of Michigan implored NASA chief, Michael Griffin, to keep a scientific ear attuned to Voyager. "It seems foolish to wait all these years to reach the heliosheath and then suddenly pull the plug," Ehlers told Griffin. "I assure you that I also think it's rather dumb to be turning off Voyagers 1 and 2," Griffin responded. Nonetheless, a NASA assessment on what spacecraft will be kept in operation and which ones will not is to be wrapped up later this year, he added. Step to the stars While the Innovative Interstellar Explorer is a real study, not real hardware, McNutt said the reviews are favorable for such a probe to be lofted within a reasonable period of time. "This would be a stepping stone. A lot of people resonate with the science fiction side about taking the first step to the stars," McNutt said. Given a go-ahead, McNutt senses that the Innovative Interstellar Explorer could be done for less than $2 billion. While some might consider that inexpensive, there would also likely be a debate about whether the first dedicated step to the stars is worth it, he said. "Basically, it's kind of like throwing a note out in a bottle ... throwing it out to sea and seeing what comes back," McNutt said. "If we really want to understand the world around us, we ought to be out there making those measurements." Interstellar Travelers Will Have to Watch Their Language Sailing to the Stars: Sex and Society Aboard the First Starships The Closest Star System: Alpha Centauri NASA's Vision: Probes At Stars by 2100 From Obsid@Sentry.net Thu Jul 7 19:06:39 2005 Received: from [192.168.1.97] (c-24-16-122-161.hsd1.wa.comcast.net [24.16.122.161]) (authenticated bits=0) by sentry.net (8.13.3/8.13.3) with ESMTP id j67J6c8m032762 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 7 Jul 2005 19:06:39 GMT Message-ID: <42CD7D23.1040402@Sentry.net> Date: Thu, 07 Jul 2005 12:06:11 -0700 From: "Stephen A. Zarkos" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050414 X-Accept-Language: en-us, en MIME-Version: 1.0 To: setiarchive@Sentry.net Subject: SETI Public: test X-Enigmail-Version: 0.90.1.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=failed version=3.0.4 test From owner-public@setileague.org Fri Jul 8 00:46:33 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j680gJRQ006229 for ; Fri, 8 Jul 2005 00:46:33 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA11983 for public-list; Thu, 7 Jul 2005 11:34:31 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f20.bay103.hotmail.com [65.54.174.30]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA11979; Thu, 7 Jul 2005 11:34:29 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 7 Jul 2005 08:33:58 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Thu, 07 Jul 2005 15:33:57 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Do Telescopes Need Astronomers? Date: Thu, 07 Jul 2005 11:33:57 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 07 Jul 2005 15:33:58.0187 (UTC) FILETIME=[4ABE7FB0:01C58309] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507140 Date: Wed, 6 Jul 2005 17:37:28 GMT (27kb) Title: Can Remote Observing be Good Observing? Reflections on Procrustes and Antaeus Authors: Felix J. Lockman (NRAO, Green Bank) Comments: Slightly edited version of an article published in 1993 in 'Observing at a Distance' eds. D.T. Emerson & R.G. Clowes, World Scientific, p325, with a new short Afterword. Posted at the request of Paul Schechter Journal-ref: Observing at a Distance, (1993) eds. D.T. Emerson and R.G. Clowes, World Scientific, p. 325 \\ Remote observing seeks to simulate the presence of the astronomer at the telescope. While this is useful, and necessary in some circumstances, simulation is not reality. The drive to abstract the astronomer from the instrument can have unpleasant consequences, some of which are prefigured in the ancient tales of Procrustes and Antaeus. This article, written in 1992 for a conference proceedings on remote observing, is reprinted here with only slight editorial changes and the addition of a short Afterword. I consider some of the human factors involved in remote observing, and suggest that our aim be to enhance rather than supplant the astronomer at the telescope. \\ ( http://arXiv.org/abs/astro-ph/0507140 , 27kb) From owner-public@setileague.org Fri Jul 8 00:47:50 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j680gJRS006229 for ; Fri, 8 Jul 2005 00:47:50 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA12006 for public-list; Thu, 7 Jul 2005 11:34:43 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f33.bay103.hotmail.com [65.54.174.43]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA12002; Thu, 7 Jul 2005 11:34:41 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 7 Jul 2005 08:34:10 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Thu, 07 Jul 2005 15:34:09 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Do Telescopes Need Astronomers? Date: Thu, 07 Jul 2005 11:34:09 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 07 Jul 2005 15:34:10.0056 (UTC) FILETIME=[51D19080:01C58309] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507140 Date: Wed, 6 Jul 2005 17:37:28 GMT (27kb) Title: Can Remote Observing be Good Observing? Reflections on Procrustes and Antaeus Authors: Felix J. Lockman (NRAO, Green Bank) Comments: Slightly edited version of an article published in 1993 in 'Observing at a Distance' eds. D.T. Emerson & R.G. Clowes, World Scientific, p325, with a new short Afterword. Posted at the request of Paul Schechter Journal-ref: Observing at a Distance, (1993) eds. D.T. Emerson and R.G. Clowes, World Scientific, p. 325 \\ Remote observing seeks to simulate the presence of the astronomer at the telescope. While this is useful, and necessary in some circumstances, simulation is not reality. The drive to abstract the astronomer from the instrument can have unpleasant consequences, some of which are prefigured in the ancient tales of Procrustes and Antaeus. This article, written in 1992 for a conference proceedings on remote observing, is reprinted here with only slight editorial changes and the addition of a short Afterword. I consider some of the human factors involved in remote observing, and suggest that our aim be to enhance rather than supplant the astronomer at the telescope. \\ ( http://arXiv.org/abs/astro-ph/0507140 , 27kb) From owner-public@setileague.org Fri Jul 8 00:47:51 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j680gJRU006229 for ; Fri, 8 Jul 2005 00:47:51 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA12000 for public-list; Thu, 7 Jul 2005 11:34:37 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f36.bay103.hotmail.com [65.54.174.46]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA11987; Thu, 7 Jul 2005 11:34:34 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 7 Jul 2005 08:34:03 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Thu, 07 Jul 2005 15:34:03 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Do Telescopes Need Astronomers? Date: Thu, 07 Jul 2005 11:34:03 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 07 Jul 2005 15:34:03.0824 (UTC) FILETIME=[4E1AA300:01C58309] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507140 Date: Wed, 6 Jul 2005 17:37:28 GMT (27kb) Title: Can Remote Observing be Good Observing? Reflections on Procrustes and Antaeus Authors: Felix J. Lockman (NRAO, Green Bank) Comments: Slightly edited version of an article published in 1993 in 'Observing at a Distance' eds. D.T. Emerson & R.G. Clowes, World Scientific, p325, with a new short Afterword. Posted at the request of Paul Schechter Journal-ref: Observing at a Distance, (1993) eds. D.T. Emerson and R.G. Clowes, World Scientific, p. 325 \\ Remote observing seeks to simulate the presence of the astronomer at the telescope. While this is useful, and necessary in some circumstances, simulation is not reality. The drive to abstract the astronomer from the instrument can have unpleasant consequences, some of which are prefigured in the ancient tales of Procrustes and Antaeus. This article, written in 1992 for a conference proceedings on remote observing, is reprinted here with only slight editorial changes and the addition of a short Afterword. I consider some of the human factors involved in remote observing, and suggest that our aim be to enhance rather than supplant the astronomer at the telescope. \\ ( http://arXiv.org/abs/astro-ph/0507140 , 27kb) From owner-public@setileague.org Fri Jul 8 00:47:52 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j680gJRW006229 for ; Fri, 8 Jul 2005 00:47:51 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA11538 for public-list; Thu, 7 Jul 2005 11:18:13 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f29.bay103.hotmail.com [65.54.174.39]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA11534; Thu, 7 Jul 2005 11:18:11 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 7 Jul 2005 08:17:40 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Thu, 07 Jul 2005 15:17:39 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: The latest papers on exoplanets and other relevant goodies Date: Thu, 07 Jul 2005 11:17:39 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 07 Jul 2005 15:17:40.0056 (UTC) FILETIME=[03BB8D80:01C58307] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507115 Date: Tue, 5 Jul 2005 23:07:21 GMT (420kb) Title: Astrometric Methods and Instrumentation to Identify and Characterize Extrasolar Planets: A Review Authors: A. Sozzetti (Harvard-Smithsonian Center for Astrophysics) Comments: 61 pages, 8 figures, PASP, accepted (October 2005 issue) \\ I present a review of astrometric techniques and instrumentation utilized to search for, detect, and characterize extra-solar planets. First, I briefly summarize the properties of the present-day sample of extrasolar planets, in connection with predictions from theoretical models of planet formation and evolution. Next, the generic approach to planet detection with astrometry is described, with significant discussion of a variety of technical, statistical, and astrophysical issues to be faced by future ground-based as well as space-borne efforts in order to achieve the required degree of measurement precision. After a brief summary of past and present efforts to detect planets via milli-arcsecond astrometry, I then discuss the planet-finding capabilities of future astrometric observatories aiming at micro-arcsecond precision. Lastly, I outline a number experiments that can be conducted by means of high-precision astrometry during the next decade, to illustrate its potential for important contributions to planetary science, in comparison with other indirect and direct methods for the detection and characterization of planetary systems. \\ ( http://arXiv.org/abs/astro-ph/0507115 , 420kb) ------------------------------------------------------------------------------ \\ Paper: astro-ph/0507122 Date: Wed, 6 Jul 2005 07:14:23 GMT (64kb) Title: Whims of an Accreting Young Brown Dwarf: Exploring Emission Line Variability of 2MASSW J1207334-393254 Authors: Alexander Scholz, Ray Jayawardhana, Alexis Brandeker (University of Toronto) Comments: 12 pages, 2 figures, ApJL, accepted \\ We report the first comprehensive study of emission line variability in an accreting young brown dwarf. We have collected 14 high-resolution optical spectra of 2MASSW J1207334-393254 (M8), a likely member of the nearby 8-million-year-old TW Hydrae association. These spectra show a variety of emission lines that are commonly seen in classical T Tauri stars. Halpha line in particular shows dramatic changes in shape and intensity in our dataset, both on timescales of several weeks and several hours. In spectra from late-January, the line is relatively weak and only slightly asymmetric. Spectra from mid- and late-March show intense, broad and asymmetric Halpha emission, indicative of on-going disk accretion. We estimate that the accretion rate could have changed by a factor of 5-10 over ~6 weeks in this brown dwarf. March spectra also reveal significant `quasi-periodic' changes in the Halpha line profile over the course of a night, from clearly double-peaked to nearly symmetric. These nightly profile changes, roughly consistent with the brown dwarf's rotation period, could be the result of a redshifted absorption feature coming into and out of our line of sight; when the profile is double-peaked we may be looking into an accretion column, flowing from the inner disk edge on to the central object, indicating that the accretion is probably channelled along the magnetic field lines. Our findings provide strong support for the magnetospheric accretion scenario, and thus for the existence of large-scale magnetic fields, in the sub-stellar regime (abridged). \\ ( http://arXiv.org/abs/astro-ph/0507122 , 64kb) ------------------------------------------------------------------------------ \\ Paper: astro-ph/0507136 Date: Wed, 6 Jul 2005 16:00:26 GMT (436kb) Title: Phase-Dependent Properties of Extrasolar Planet Atmospheres Authors: Travis S. Barman, Peter H. Hauschildt and France Allard Comments: 8 pages, 7 figures, accepted for publication in the Astrophysical Journal \\ Recently the Spitzer Space Telescope observed the transiting extrasolar planets, TrES-1 and HD209458b. These observations have provided the first estimates of the day side thermal flux from two extrasolar planets orbiting Sun-like stars. In this paper, synthetic spectra from atmospheric models are compared to these observations. The day-night temperature difference is explored and phase-dependent flux densities are predicted for both planets. For HD209458b and TrES-1, models with significant day-to-night energy redistribution are required to reproduce the observations. However, the observational error bars are large and a range of models remains viable. \\ ( http://arXiv.org/abs/astro-ph/0507136 , 449kb) ------------------------------------------------------------------------------ \\ Paper: astro-ph/0507137 Date: Wed, 6 Jul 2005 16:32:06 GMT (60kb) Title: On water ice formation in interstellar clouds Authors: Renaud Papoular Comments: 9 pages, 6 figures. MNRAS, in press \\ A model is proposed for the formation of water ice mantles on grains in interstellar clouds. This occurs by direct accretion of monomers from the gas, be they formed by gas or surface reactions. The model predicts the existence of a threshold in interstellar light extinction, A(v), which is mainly determined by the adsorption energy of water molecules on the grain material; for hydrocarbon material, chemical simulation places this energy between 0.5 and 2 kcal/mole, which sets the visible exctinction threshold at a few magnitudes, as observed. Once the threshold is crossed, all available water molecules in the gas are quickly adsorbed, forming an ice mantle, because the grain cools down and the adsorption energy on ice is higher than on bare grain. The model also predicts that the thickness of the mantle, and, hence, the optical thickness at 3 mu, grow linearly with A(v), as observed, with a slope which depends upon the total amount of water in the gas. Chemical simulation was also used to determine the adsorption sites and energies of O and OH on hydrocarbons, and study the dynamics of formation of water molecules by surface reactions with gaseous H atoms, as well as their chances of sticking in situ. \\ ( http://arXiv.org/abs/astro-ph/0507137 , 60kb) ------------------------------------------------------------------------------ From owner-public@setileague.org Fri Jul 8 13:57:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j68DvqtA009933 for ; Fri, 8 Jul 2005 13:57:52 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id JAA16645 for public-list; Fri, 8 Jul 2005 09:43:43 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f40.bay103.hotmail.com [65.54.174.50]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id JAA16641; Fri, 8 Jul 2005 09:43:41 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 8 Jul 2005 06:43:10 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Fri, 08 Jul 2005 13:43:09 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Oligarchic and giant impact growth of terrestrial planets in the presence of gas Date: Fri, 08 Jul 2005 09:43:09 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 08 Jul 2005 13:43:10.0153 (UTC) FILETIME=[FA9EC390:01C583C2] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507180 Date: Thu, 7 Jul 2005 19:45:09 GMT (518kb) Title: Oligarchic and giant impact growth of terrestrial planets in the presence of gas giant planet migration Authors: Martyn J. Fogg and Richard P. Nelson (Queen Mary, University of London) Comments: 17 pages, 11 figures, to be published in A&A. Higher resolution pdf available at: http://www.users.globalnet.co.uk/~mfogg/3453fogg.pdf \\ We present the results of N--body simulations which examine the effect that gas giant planet migration has on the formation of terrestrial planets. The models incorporate a 0.5 Jupiter mass planet undergoing type II migration through an inner protoplanet--planetesimal disk, with gas drag included. Each model is initiated with the inner disk being at successively increased levels of maturity, so that it is undergoing either oligarchic or giant impact style growth as the gas giant migrates. In all cases, a large fraction of the disk mass survives the passage of the giant, either by accreting into massive terrestrial planets shepherded inward of the giant, or by being scattered into external orbits. Shepherding is favored in younger disks where there is strong dynamical friction from planetesimals and gas drag is more influential, whereas scattering dominates in more mature disks where dissipation is weaker. In each scenario, sufficient mass is scattered outward to provide for the eventual accretion of a set of terrestrial planets in external orbits, including within the system's habitable zone. An interesting result is the generation of massive, short period, terrestrial planets from compacted material pushed ahead of the giant. These planets are reminiscent of the short period Neptune mass planets discovered recently, suggesting that such `hot Neptunes' could form locally as a by-product of giant planet migration. \\ ( http://arXiv.org/abs/astro-ph/0507180 , 518kb) From owner-public@setileague.org Sat Jul 9 02:11:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j692BrTp019147 for ; Sat, 9 Jul 2005 02:11:53 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id VAA05911 for public-list; Fri, 8 Jul 2005 21:59:44 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav7.bay103.hotmail.com [65.54.174.79]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id VAA05907; Fri, 8 Jul 2005 21:59:42 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 8 Jul 2005 18:59:11 -0700 Message-ID: Received: from 65.54.174.202 by BAY103-DAV7.phx.gbl with DAV; Sat, 09 Jul 2005 01:59:10 +0000 X-Originating-IP: [65.54.174.202] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: Fw: S&T's Weekly News Bulletin for July 8 Date: Fri, 8 Jul 2005 21:59:08 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 X-RFC2646: Format=Flowed; Original Seal-Send-Time: Fri, 8 Jul 2005 21:59:08 -0400 X-OriginalArrivalTime: 09 Jul 2005 01:59:11.0227 (UTC) FILETIME=[CCABE4B0:01C58429] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 ----- Original Message ----- From: To: Sent: Friday, July 08, 2005 7:16 PM Subject: S&T's Weekly News Bulletin for July 8 > ======================================================================== > > * * * SKY & TELESCOPE's WEEKLY NEWS BULLETIN - July 8, 2005 * * * > > ======================================================================== > > Welcome to S&T's Weekly News Bulletin. Images, the full stories abridged > here, and other enhancements are on our Web site, SkyandTelescope.com, at > the URLs provided. (If the links don't work, just manually type the URLs > into your Web browser.) Clear skies! > > ======================================================================== > > AMATEUR DETECTS PLANET 260 LIGHT-YEARS AWAY > > One day before an international team announced that a planet periodically > crosses the face of an 8th-magnitude star in Hercules, California amateur > astronomer Ron Bissinger recorded a partial transit of the planet at his > home observatory. He also detected partial transits during the next two > opportunities, allowing him to produce a composite light curve of a > complete event. The new find is now the third transiting exoplanet to be > detected by amateurs.... > > > http://SkyandTelescope.com/news/article_1543_1.asp > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > > THE COMET AFTER DEEP IMPACT > > In the Jet Propulsion Laboratory mission-control room, cheers and shouts > erupted as Deep Impact's brilliant crash site suddenly burst forth on the > gray, lumpy nucleus of Comet Tempel 1. But for most telescopic observers, > 83 million miles removed from the action, it was a different story. The > sudden flare-up that appeared so brilliant on the 5-mile-diameter comet > nucleus was mostly hidden in the unresolved glow of the comet's > thousands-of-miles-wide coma. And that was if you could see the faint > comet at all. > > To observers with large telescopes and good skies, however, a change in > the comet became apparent within minutes.... > > > http://SkyandTelescope.com/observing/article_1540_1.asp > > ======================================================================== > > HIGHLIGHTS OF THIS WEEK'S SKY > > * Bright Venus and faint Mercury remain paired low in the west in bright > twilight. > * The Moon shines left of Jupiter on Wednesday the 13th and left of Spica > on Thursday the 14th. > * First-quarter Moon on the 14th. > > > http://SkyandTelescope.com/observing/ataglance > > ======================================================================== > > SKYWATCH 2006 (Advertisement) > > Get ready for another great year of stargazing! Our annual magazine > SKYWATCH brings you all-sky constellation charts for 16 months -- from > September 2005 through December 2006 -- along with celestial highlights of > 2006 and descriptions of dozens of telescopes on today's market. Reserve > your copy of SKYWATCH 2006 today, and we'll send it to you as soon as it's > ready! > > > http://SkyandTelescope.com/SkyWatch > > ======================================================================== > > Copyright 2005 Sky Publishing Corp. S&T's Weekly News Bulletin is provided > as a free service to the astronomical community by the editors of SKY & > TELESCOPE magazine. Widespread distribution is encouraged as long as our > copyright notice is included, with the words "used by permission." This > bulletin may not be published in any other form without written permission > from Sky Publishing; send e-mail to permissions@SkyandTelescope.com or > call +1 617-864-7360. More astronomy news is available on our Web site at > http://SkyandTelescope.com/news/. > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > > To change your address, unsubscribe from S&T's Weekly News Bulletin, or to > subscribe to S&T's Skywatcher's Bulletin (which calls attention to > noteworthy celestial events), go to: > > > http://SkyandTelescope.com/shopatsky/emailsubscribe.asp > > ======================================================================== > > From owner-public@setileague.org Sun Jul 10 15:30:17 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6AFUHki012763 for ; Sun, 10 Jul 2005 15:30:17 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA03018 for public-list; Sun, 10 Jul 2005 11:17:47 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from pne-smtpout1-sn1.fre.skanova.net (pne-smtpout1-sn1.fre.skanova.net [81.228.11.98]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA03014 for ; Sun, 10 Jul 2005 11:17:44 -0400 (EDT) Received: from asus (81.231.92.219) by pne-smtpout1-sn1.fre.skanova.net (7.2.060.1) id 42B813B000363D52 for public@setileague.org; Sun, 10 Jul 2005 17:17:13 +0200 Message-ID: <003301c58562$72ffc0a0$0200a8c0@asus> From: "Greg." To: Subject: SETI public: Notch filter design Date: Sun, 10 Jul 2005 17:17:12 +0200 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=failed version=3.0.4 (A bit off topic but see this as a filter question you could apply to your dish :-) A couple of miles away from my house there is a pager transmitter operating on 169.5-170MHz, the interference couse severe intermodulation on any antenna pre-amp, does someone know how to calculate a filter for this frequency? Using filter design software all I come up with are components that are non-standard values and changing components to nearest standard value the curve goes way off... For microwave use, a simpel high-pass filter will do nicely so that's not a problem but I also use another active antenna for 30-1000MHz reception and this is where I need the filter. I could sacrifice 2m reception if the filter cant be sharp enough but I'd really like 137-138MHz reception of NOAA satellites. A coax stub will not work in this case, I need to fit the filter inside the antenna casing so I'll have to make a small surfacemount pcb... Any help appreciated, I've tried designs for hours without finding what I need. //Greg From owner-public@setileague.org Sun Jul 10 16:08:31 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6AG8UgY012894 for ; Sun, 10 Jul 2005 16:08:30 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA04053 for public-list; Sun, 10 Jul 2005 11:57:25 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav4.bay103.hotmail.com [65.54.174.76]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA04049; Sun, 10 Jul 2005 11:57:22 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 10 Jul 2005 08:56:51 -0700 Message-ID: Received: from 65.54.174.200 by BAY103-DAV4.phx.gbl with DAV; Sun, 10 Jul 2005 15:56:51 +0000 X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: Transmission: The Other Side of SETI Date: Sun, 10 Jul 2005 11:56:48 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 X-RFC2646: Format=Flowed; Original Seal-Send-Time: Sun, 10 Jul 2005 11:56:48 -0400 X-OriginalArrivalTime: 10 Jul 2005 15:56:51.0496 (UTC) FILETIME=[FC8A1280:01C58567] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Transmission: The Other Side of SETI David F. Mayer, Advanced Computer Consultants, Columbus, OH Abstract: The thesis of this paper is that the best way to answer the question of how to search for extraterrestrial intelligence is to look at SETI from the perspective of the civilization which is attempting to TRANSMIT to another. It is concluded that the visible band presents the most viable medium of contact, since it offers both the greatest bandwidth and the most narrow focusing, permitting the most information to be transmitted to potential targets at the lowest cost. The essential problem of defining the meaning of a message to an unknown civilization is solved by the concept of the SELF-DECODING MESSAGE. The problem of the selection of potential targets is discussed and criteria for optimal choice are given. Finally, the essential question of the PRUDENCE of such a transmission program is presented and discussed. My central point is not bandwidth but easy acquisition and decoding by a naive receiver. http://home.earthlink.net/~motustuff/Seti_Transmission/TRANSMIT0.htm From owner-public@setileague.org Sun Jul 10 16:42:23 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6AGgNEq013049 for ; Sun, 10 Jul 2005 16:42:23 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id MAA04908 for public-list; Sun, 10 Jul 2005 12:31:02 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-dav15.bay103.hotmail.com [65.54.174.87]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id MAA04900; Sun, 10 Jul 2005 12:30:59 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 10 Jul 2005 09:30:28 -0700 Message-ID: Received: from 65.54.174.200 by BAY103-DAV15.phx.gbl with DAV; Sun, 10 Jul 2005 16:30:27 +0000 X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: "setipublic" Cc: "BioAstro" Subject: SETI public: A very recent paper on IIE - and what would it take for a probe to survive to AC? Date: Sun, 10 Jul 2005 12:30:25 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 X-RFC2646: Format=Flowed; Original Seal-Send-Time: Sun, 10 Jul 2005 12:30:25 -0400 X-OriginalArrivalTime: 10 Jul 2005 16:30:28.0409 (UTC) FILETIME=[AEB69290:01C5856C] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Includes a diagram of the probe, its main purposes, and issues that need to be worked out. http://astronauticsnow.com/mg_pubs/2005_Gruntman_et_al_p_29-34_IAA_Aosta.pdf I also hope they will consider putting a message on it ala Pioneer and Voyager when they reach that stage of the project. Another thought - what would it take to have such a probe survive to function at Alpha Centauri if it required a century or two to get there, and assuming no one minded the long travel time or that the builders would not live to see the science results? Larry From owner-public@setileague.org Mon Jul 11 17:37:12 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6BHbBLp020200 for ; Mon, 11 Jul 2005 17:37:12 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id NAA12556 for public-list; Mon, 11 Jul 2005 13:22:01 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f29.bay103.hotmail.com [65.54.174.39]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id NAA12543; Mon, 11 Jul 2005 13:21:51 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 11 Jul 2005 10:21:19 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Mon, 11 Jul 2005 17:21:19 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: bioastro@setileague.org Cc: public@setileague.org Subject: SETI public: Mystery compact object producing high energy radiation Date: Mon, 11 Jul 2005 13:21:19 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 11 Jul 2005 17:21:19.0679 (UTC) FILETIME=[F3D32CF0:01C5863C] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Mystery compact object producing high energy radiation http://www.spaceref.com/news/viewpr.html?pid=17387 "In a recent issue of Science Magazine, the High Energy Stereoscopic System (H.E.S.S.) team of international astrophysicists reports the discovery of another new type of very high energy (VHE) gamma ray source." From owner-public@setileague.org Mon Jul 11 17:55:38 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6BHtcpG020380 for ; Mon, 11 Jul 2005 17:55:38 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id NAA13203 for public-list; Mon, 11 Jul 2005 13:43:52 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from host224.ipowerweb.com ([66.235.220.224]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id NAA13196 for ; Mon, 11 Jul 2005 13:43:48 -0400 (EDT) Received: from cpe-66-27-116-71.san.res.rr.com ([66.27.116.71] helo=Zeke) by host224.ipowerweb.com with smtp (Exim 4.43) id 1Ds2JB-0005IN-FQ; Mon, 11 Jul 2005 10:43:09 -0700 Message-ID: <000801c58640$03827f40$887ba8c0@Zeke> From: "James Brown" To: "SETI League Public" , "SETI League Argus" Subject: SETI public: Remote SETI Client Test Date: Mon, 11 Jul 2005 10:43:14 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C58605.56D9CD00" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1506 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host224.ipowerweb.com X-AntiAbuse: Original Domain - seti1.setileague.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - seti.net X-Source: X-Source-Args: X-Source-Dir: Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=HTML_60_70,HTML_MESSAGE autolearn=failed version=3.0.4 This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C58605.56D9CD00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable For a short test download the audio client on the link below and start = it. http://www.seti.net/SETINet/Engineering/Engineering.htm You should hear the output of my SETI Receiver set on the WSS. =20 Please try it and give me some feed back. Thanks.. Argus Station: DM12jb James Brown W6KYP Jim@SETI.Net [put 'SETI' in subject line] www.seti.net ------=_NextPart_000_0005_01C58605.56D9CD00 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
For a short test download the audio = client on the=20 link below and start it.
http://w= ww.seti.net/SETINet/Engineering/Engineering.htm
You should hear the output of my SETI = Receiver set=20 on the WSS. 
Please try it and give me some feed=20 back.
 
Thanks..
 
Argus Station: DM12jb
James = Brown
W6KYP
Jim@SETI.Net [put 'SETI' in subject = line]
www.seti.net
------=_NextPart_000_0005_01C58605.56D9CD00-- From owner-public@setileague.org Mon Jul 11 19:29:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by sentry.net (8.13.3/8.13.3) with ESMTP id j6BJP87l000203 for ; Mon, 11 Jul 2005 19:29:53 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id OAA14207 for public-list; Mon, 11 Jul 2005 14:23:29 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from www.groundcontrol.co.uk (81-178-30-197.dsl.pipex.com [81.178.30.197]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id OAA14199 for ; Mon, 11 Jul 2005 14:23:25 -0400 (EDT) Received: from davespc by groundcontrol.co.uk (MDaemon.PRO.v8.0.3.R) with ESMTP id md50000039365.msg for ; Mon, 11 Jul 2005 19:22:16 +0100 Message-ID: <001901c58645$75b308a0$0200a8c0@davespc> Reply-To: "David Ames" From: "David Ames" To: "James Brown" , "SETI League Public" , "SETI League Argus" References: <000801c58640$03827f40$887ba8c0@Zeke> Subject: SETI public: Re: Argus: Remote SETI Client Test Date: Mon, 11 Jul 2005 19:22:13 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0016_01C5864D.D75FA2E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 X-Spam-Processed: groundcontrol.co.uk, Mon, 11 Jul 2005 19:22:16 +0100 (not processed: message from valid local sender) X-Return-Path: dave@groundcontrol.co.uk X-MDaemon-Deliver-To: public@seti1.setileague.org X-MDAV-Processed: groundcontrol.co.uk, Mon, 11 Jul 2005 19:22:18 +0100 Sender: owner-public@setileague.org Precedence: bulk This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C5864D.D75FA2E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi James, Just tried and it worked over here in england..well done! Dave Ames ----- Original Message -----=20 From: James Brown=20 To: SETI League Public ; SETI League Argus=20 Sent: Monday, July 11, 2005 6:43 PM Subject: Argus: Remote SETI Client Test For a short test download the audio client on the link below and start = it. http://www.seti.net/SETINet/Engineering/Engineering.htm You should hear the output of my SETI Receiver set on the WSS. =20 Please try it and give me some feed back. Thanks.. Argus Station: DM12jb James Brown W6KYP Jim@SETI.Net [put 'SETI' in subject line] www.seti.net ------=_NextPart_000_0016_01C5864D.D75FA2E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi James,
 
Just tried and it worked over here in = england..well=20 done!
 
Dave Ames
 
----- Original Message -----
From:=20 James Brown =
To: SETI League Public ; = SETI = League=20 Argus
Sent: Monday, July 11, 2005 = 6:43 PM
Subject: Argus: Remote SETI = Client=20 Test

For a short test download the audio = client on the=20 link below and start it.
http://w= ww.seti.net/SETINet/Engineering/Engineering.htm
You should hear the output of my SETI = Receiver=20 set on the WSS. 
Please try it and give me some feed=20 back.
 
Thanks..
 
Argus Station: DM12jb
James=20 Brown
W6KYP
Jim@SETI.Net = [put 'SETI'=20 in subject line]
www.seti.net
------=_NextPart_000_0016_01C5864D.D75FA2E0-- From owner-public@setileague.org Tue Jul 12 13:20:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6CDKpCD006038 for ; Tue, 12 Jul 2005 13:20:52 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id JAA12861 for public-list; Tue, 12 Jul 2005 09:05:12 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f40.bay103.hotmail.com [65.54.174.50]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id JAA12857; Tue, 12 Jul 2005 09:05:09 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 12 Jul 2005 06:04:37 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Tue, 12 Jul 2005 13:04:36 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: Period Relation for the 2:1 resonance in the GJ876 planetary system Date: Tue, 12 Jul 2005 09:04:36 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 12 Jul 2005 13:04:37.0308 (UTC) FILETIME=[41B59FC0:01C586E2] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 Paper: astro-ph/0507217 Date: Fri, 8 Jul 2005 18:43:57 GMT (18kb) Title: Period Relation for the 2:1 resonance in the GJ876 planetary system Authors: Michael Nauenberg Comments: 5 pages 9 figures \\ The recent radial velocity Keck data for GJ876 in Laughlin et al. (2005) is shown to be in good agreement, apart from a 6 m/s scatter, with a theoretical calculation (Nauenberg, 2002) based on orbital parameters from a fit to the earlier Keck data. The time variation of the periods of the inner and outer planets, which are locked in a near 2:1 resonance, are evaluated, and their mean values, Pi and Po, are shown to satisfy closely the relation Po/Pi=2+Po/P, where P is the period for the retrograde precesion of the common mean periastron of these planets. \\ ( http://arXiv.org/abs/astro-ph/0507217 , 18kb) ------------------------------------------------------------------------------ \\ Paper: astro-ph/0504579 replaced with revised version Fri, 8 Jul 2005 15:40:58 GMT (217kb) Title: System Parameters of the Transiting Extrasolar Planet HD 209458b Authors: Robert A. Wittenmyer, William F. Welsh, Jerome A. Orosz, A.B. Schultz, W. Kinzel, M. Kochte, F. Bruhweiler, D. Bennum, Gregory W. Henry, G.W. Marcy, D.A. Fischer, R.P. Butler, S.S. Vogt Comments: 30 pages, 5 figures. Accepted for publication in ApJ \\ ( http://arXiv.org/abs/astro-ph/0504579 , 217kb) From owner-public@setileague.org Tue Jul 12 15:17:53 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6CFHrgp006714 for ; Tue, 12 Jul 2005 15:17:53 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id LAA15909 for public-list; Tue, 12 Jul 2005 11:04:49 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from emperor.canarie.ca (emperor.canarie.ca [205.189.33.88]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id LAA15894; Tue, 12 Jul 2005 11:04:44 -0400 (EDT) Received: from localhost (emperor [127.0.0.1]) by emperor.canarie.ca (Postfix) with ESMTP id 8B09F775A8; Tue, 12 Jul 2005 11:04:08 -0400 (EDT) Received: from emperor.canarie.ca ([127.0.0.1]) by localhost (emperor [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 15050-06; Tue, 12 Jul 2005 11:04:08 -0400 (EDT) Received: from amarillo (emperor.canarie.ca [205.189.33.88]) by emperor.canarie.ca (Postfix) with ESMTP id 4F3B5775A6; Tue, 12 Jul 2005 11:04:08 -0400 (EDT) Reply-To: From: "Bill St.Arnaud" To: "'LARRY KLAES'" , "'setipublic'" Cc: "'BioAstro'" Subject: RE: SETI public: Transmission: The Other Side of SETI Date: Tue, 12 Jul 2005 11:04:01 -0400 Message-ID: <000c01c586f2$f11ec3a0$0a21bdcd@amarillo> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: by amavisd-new at canarie.ca Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by seti1.setileague.org id LAA15895 Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on Sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=none autolearn=failed version=3.0.4 David: I enjoyed your paper. However I think there is one other category of ET transmission that is not described in your paper: archeological transmission for the benefit of future generations of the transmitter's society i.e. electronic time capsule The purpose of these transmissions is not to contact intelligent civilizations on other planets but to leave an electronic time capsule for future generations of the transmitter's society on their own planet. Reflected radar beams off distant exo-planets, gravitational lensing, inter-stellar refraction and other techniques could be used so that a signal sent from earth would some day return back to earth and be detected by future generations. The signal would be extremely weak - but knowing its characteristics should make it easier detect for future technologically advanced societies. If other ET civilizations have the same anthromorphic desire "to leave their mark" then their would be a rationale for these societies to go to the expense to carry out inter-stellar transmissions for many generations. It is the same desire that we have had over many millennia to build pyramids, castles and tombstones Bill > -----Original Message----- > From: owner-public@setileague.org [mailto:owner-public@setileague.org] On > Behalf Of LARRY KLAES > Sent: Sunday, July 10, 2005 11:57 AM > To: setipublic > Cc: BioAstro > Subject: SETI public: Transmission: The Other Side of SETI > > Transmission: The Other Side of SETI > > David F. Mayer, Advanced Computer Consultants, Columbus, OH > > Abstract: The thesis of this paper is that the best way to answer the > question of how to search for extraterrestrial intelligence is to look at > SETI from the perspective of the civilization which is attempting to > TRANSMIT to another. It is concluded that the visible band presents the > most > viable medium of contact, since it offers both the greatest bandwidth and > the most narrow focusing, permitting the most information to be > transmitted > to potential targets at the lowest cost. The essential problem of defining > the meaning of a message to an unknown civilization is solved by the > concept > of the SELF-DECODING MESSAGE. The problem of the selection of potential > targets is discussed and criteria for optimal choice are given. Finally, > the > essential question of the PRUDENCE of such a transmission program is > presented and discussed. > > My central point is not bandwidth but easy acquisition and decoding by a > naive receiver. > > http://home.earthlink.net/~motustuff/Seti_Transmission/TRANSMIT0.htm From owner-public@setileague.org Tue Jul 12 16:45:22 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6CGjMj2007158 for ; Tue, 12 Jul 2005 16:45:22 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id MAA18064 for public-list; Tue, 12 Jul 2005 12:28:14 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from host224.ipowerweb.com ([66.235.220.224]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id MAA18056 for ; Tue, 12 Jul 2005 12:28:10 -0400 (EDT) Received: from cpe-66-27-116-71.san.res.rr.com ([66.27.116.71] helo=Zeke) by host224.ipowerweb.com with smtp (Exim 4.43) id 1DsNbZ-0006Jl-9Y; Tue, 12 Jul 2005 09:27:33 -0700 Message-ID: <001101c586fe$9e4feb20$887ba8c0@Zeke> From: "James Brown" To: "James Brown" , "SETI League Public" , "SETI League Argus" References: <000801c58640$03827f40$887ba8c0@Zeke> Subject: SETI public: Re: Argus: Remote SETI Client Test Date: Tue, 12 Jul 2005 09:27:38 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000E_01C586C3.F1ABF3D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1506 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host224.ipowerweb.com X-AntiAbuse: Original Domain - seti1.setileague.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - seti.net X-Source: X-Source-Args: X-Source-Dir: Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on Sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=HTML_60_70,HTML_MESSAGE autolearn=failed version=3.0.4 This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C586C3.F1ABF3D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A local power failure at SETI Net knocked the system down for a bit. = Its up again and should be able to be connected too. ----- Original Message -----=20 From: James Brown=20 To: SETI League Public ; SETI League Argus=20 Sent: Monday, July 11, 2005 10:43 AM Subject: Argus: Remote SETI Client Test For a short test download the audio client on the link below and start = it. http://www.seti.net/SETINet/Engineering/Engineering.htm You should hear the output of my SETI Receiver set on the WSS. =20 Please try it and give me some feed back. Thanks.. Argus Station: DM12jb James Brown W6KYP Jim@SETI.Net [put 'SETI' in subject line] www.seti.net ------=_NextPart_000_000E_01C586C3.F1ABF3D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
A local power failure at SETI Net = knocked the=20 system down for a bit.  Its up again and should be able to be = connected=20 too.
----- Original Message -----
From:=20 James Brown =
To: SETI League Public ; = SETI = League=20 Argus
Sent: Monday, July 11, 2005 = 10:43=20 AM
Subject: Argus: Remote SETI = Client=20 Test

For a short test download the audio = client on the=20 link below and start it.
http://w= ww.seti.net/SETINet/Engineering/Engineering.htm
You should hear the output of my SETI = Receiver=20 set on the WSS. 
Please try it and give me some feed=20 back.
 
Thanks..
 
Argus Station: DM12jb
James=20 Brown
W6KYP
Jim@SETI.Net = [put 'SETI'=20 in subject line]
www.seti.net
------=_NextPart_000_000E_01C586C3.F1ABF3D0-- From owner-public@setileague.org Tue Jul 12 20:08:06 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6CK862Q010562 for ; Tue, 12 Jul 2005 20:08:06 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id PAA23524 for public-list; Tue, 12 Jul 2005 15:54:10 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f1.bay103.hotmail.com [65.54.174.11]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id PAA23520; Tue, 12 Jul 2005 15:54:08 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 12 Jul 2005 12:53:37 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Tue, 12 Jul 2005 19:53:36 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com In-Reply-To: <42D410FD.8030905@seti.org> From: "LARRY KLAES" To: vakoch@seti.org, bill.st.arnaud@canarie.ca Cc: public@setileague.org, bioastro@setileague.org Subject: Re: SETI public: Transmission: The Other Side of SETI Date: Tue, 12 Jul 2005 15:53:36 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 12 Jul 2005 19:53:37.0626 (UTC) FILETIME=[64E0FBA0:01C5871B] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on Sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 This thread may find this book of use: Beyond Contact: A Guide to SETI and Communicating A Guide to SETI and Communicating with Alien Civilizations By Brian McConnell First Edition March 2001 ISBN: 0-596-00037-5 432 pages In Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations, author Brian McConnell examines the science and technology behind the search for intelligent life in space, from the physics of inter-stellar laser and radio communication to information theory and linguistics. If you've ever wondered whether it really would be possible to communicate with other civilizations, you'll want to read this book. http://www.oreilly.com/catalog/alien/index.html Larry >From: Doug Vakoch >To: bill.st.arnaud@canarie.ca >CC: 'LARRY KLAES' ,'setipublic' >,'BioAstro' >Subject: Re: SETI public: Transmission: The Other Side of SETI >Date: Tue, 12 Jul 2005 11:50:37 -0700 > >Bill, > >I think your argument for an "archaeological transmission" for the benefit >of others makes sense. For somewhat similar thoughts, see > >http://www.space.com/searchforlife/seti_vakoch_future_030410.html > >Doug > >Bill St.Arnaud wrote: > >>David: >> >>I enjoyed your paper. >> >>However I think there is one other category of ET transmission that is not >>described in your paper: archeological transmission for the benefit of >>future generations of the transmitter's society i.e. electronic time >>capsule >> >>The purpose of these transmissions is not to contact intelligent >>civilizations on other planets but to leave an electronic time capsule for >>future generations of the transmitter's society on their own planet. >> >>Reflected radar beams off distant exo-planets, gravitational lensing, >>inter-stellar refraction and other techniques could be used so that a >>signal >>sent from earth would some day return back to earth and be detected by >>future generations. >> >>The signal would be extremely weak - but knowing its characteristics >>should >>make it easier detect for future technologically advanced societies. >> >>If other ET civilizations have the same anthromorphic desire "to leave >>their >>mark" then their would be a rationale for these societies to go to the >>expense to carry out inter-stellar transmissions for many generations. It >>is the same desire that we have had over many millennia to build pyramids, >>castles and tombstones >> >>Bill >> >> >> >> >> >>>-----Original Message----- >>>From: owner-public@setileague.org [mailto:owner-public@setileague.org] On >>>Behalf Of LARRY KLAES >>>Sent: Sunday, July 10, 2005 11:57 AM >>>To: setipublic >>>Cc: BioAstro >>>Subject: SETI public: Transmission: The Other Side of SETI >>> >>>Transmission: The Other Side of SETI >>> >>>David F. Mayer, Advanced Computer Consultants, Columbus, OH >>> >>>Abstract: The thesis of this paper is that the best way to answer the >>>question of how to search for extraterrestrial intelligence is to look at >>>SETI from the perspective of the civilization which is attempting to >>>TRANSMIT to another. It is concluded that the visible band presents the >>>most >>>viable medium of contact, since it offers both the greatest bandwidth and >>>the most narrow focusing, permitting the most information to be >>>transmitted >>>to potential targets at the lowest cost. The essential problem of >>>defining >>>the meaning of a message to an unknown civilization is solved by the >>>concept >>>of the SELF-DECODING MESSAGE. The problem of the selection of potential >>>targets is discussed and criteria for optimal choice are given. Finally, >>>the >>>essential question of the PRUDENCE of such a transmission program is >>>presented and discussed. >>> >>>My central point is not bandwidth but easy acquisition and decoding by a >>>naive receiver. >>> >>>http://home.earthlink.net/~motustuff/Seti_Transmission/TRANSMIT0.htm >>> >>> >> >> >> > From owner-public@setileague.org Wed Jul 13 03:47:28 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6D3lSgj013145 for ; Wed, 13 Jul 2005 03:47:28 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id XAA05256 for public-list; Tue, 12 Jul 2005 23:33:32 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from nasc-out-2.nasc.inter.net (nasc-out-2.nasc.inter.net [203.176.60.254]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id XAA05252 for ; Tue, 12 Jul 2005 23:33:30 -0400 (EDT) Received: from ip-214.81.126.206.dsl-cust.ca.inter.net ([206.126.81.214] helo=MIKEMXP) by app2.nasc.inter.net with asmtp (Exim 3.36 #2) id 1DsXzS-00071y-00 for public@seti1.setileague.org; Tue, 12 Jul 2005 23:32:54 -0400 Message-ID: <003a01c5875b$8c623ff0$d6517ece@MIKEMXP> Reply-To: "Mike M." From: "Mike M." To: "SETIpublic" Subject: SETI public: software question Date: Tue, 12 Jul 2005 23:32:50 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0037_01C5873A.04AD3400" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1478 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1478 Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on Sentry.net X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.5 tests=HTML_40_50,HTML_MESSAGE autolearn=failed version=3.0.4 This is a multi-part message in MIME format. ------=_NextPart_000_0037_01C5873A.04AD3400 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Can anyone please tell me where to download a freeware program which = can convert a list of data (numbers) into a table of whatever dimensions = one chooses? Relative to SETI, it could be used, for example, to try to = find a picture embedded in a radio transmission, by arranging ones and = zeros into 2-dimensional grids of different possible pixel heights and = pixel widths of an image. I've already wasted too much time looking for = this, so if anyone can help, that would be great. Thanks, Mike ------=_NextPart_000_0037_01C5873A.04AD3400 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
    Can anyone please = tell me where=20 to download a freeware program which can convert a list of data = (numbers)=20 into a table of whatever dimensions one chooses? Relative to SETI, it = could be=20 used, for example, to try to find a picture embedded in a radio = transmission, by=20 arranging ones and zeros into 2-dimensional grids of different possible = pixel=20 heights and pixel widths of an image. I've already wasted too much time = looking=20 for this, so if anyone can help, that would be great.
       Thanks, = Mike
------=_NextPart_000_0037_01C5873A.04AD3400-- From owner-public@setileague.org Wed Jul 13 20:24:43 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6DKOg5P018792 for ; Wed, 13 Jul 2005 20:24:43 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id QAA00579 for public-list; Wed, 13 Jul 2005 16:09:37 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-public@seti1.setileague.org using -f Received: from hotmail.com (bay103-f24.bay103.hotmail.com [65.54.174.34]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id QAA00562; Wed, 13 Jul 2005 16:09:35 -0400 (EDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 13 Jul 2005 13:09:04 -0700 Message-ID: Received: from 65.54.174.200 by by103fd.bay103.hotmail.msn.com with HTTP; Wed, 13 Jul 2005 20:09:03 GMT X-Originating-IP: [65.54.174.200] X-Originating-Email: [ljk4@msn.com] X-Sender: ljk4@msn.com From: "LARRY KLAES" To: public@setileague.org Cc: bioastro@setileague.org Subject: SETI public: FW: NASA Scientist Finds World With Triple Sunsets Date: Wed, 13 Jul 2005 16:09:03 -0400 Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-OriginalArrivalTime: 13 Jul 2005 20:09:04.0059 (UTC) FILETIME=[B77D30B0:01C587E6] Sender: owner-public@setileague.org Precedence: bulk X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on Sentry.net X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.5 tests=MSGID_FROM_MTA_HEADER autolearn=failed version=3.0.4 >From: "NASA Jet Propulsion Laboratory" >Reply-To: >To: "Larry Klaes" >Subject: NASA Scientist Finds World With Triple Sunsets >Date: Wed, 13 Jul 2005 12:47:54 -0700 > >MEDIA RELATIONS OFFICE >JET PROPULSION LABORATORY >CALIFORNIA INSTITUTE OF TECHNOLOGY >NATIONAL AERONAUTICS AND SPACE ADMINISTRATION >PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011 >http://www.jpl.nasa.gov > >Whitney Clavin (818) 354-4673 >Jet Propulsion Laboratory, Pasadena, Calif. > >News Release: 2005-115 July 13, 2005 > >NASA Scientist Finds World With Triple Sunsets > >A NASA-funded astronomer has discovered a world where the sun sets over the >horizon, >followed by a second sun and then a third. The new planet, called HD 188753 >Ab, is the >first known to reside in a classic triple-star system. > >"The sky view from this planet would be spectacular, with an occasional >triple sunset," >said Dr. Maciej Konacki (MATCH-ee Konn-ATZ-kee) of the California Institute >of >Technology, Pasadena, Calif., who found the planet using the Keck I >telescope atop >Mauna Kea mountain in Hawaii. "Before now, we had no clues about whether >planets >could form in such gravitationally complex systems." > >The finding, reported in this week's issue of Nature, suggests that planets >are more robust >than previously believed. > >"This is good news for planets," said Dr. Shri Kulkarni, who oversees >Konacki's research >at Caltech. "Planets may live in all sorts of interesting neighborhoods >that, until now, >have gone largely unexplored." Kulkarni is the interdisciplinary scientist >for NASA's >planned SIM PlanetQuest mission, which will search for signs of Earth-like >worlds. > >Systems with multiple stars are widespread throughout the universe, >accounting for more >than half of all stars. Our Sun's closest star, Alpha Centauri, is a member >of a trio. > >"Multiple-star systems have not been popular planet-hunting grounds," said >Konacki. >"They are difficult to observe and were believed to be inhospitable to >planets." > >The new planet belongs to a common class of extrasolar planets called "hot >Jupiters," >which are gas giants that zip closely around their parent stars. In this >case, the planet >whips every 3.3 days around a star that is circled every 25.7 years by a >pirouetting pair of >stars locked in a 156-day orbit. > > >The circus-like trio of stars is a cramped bunch, fitting into the same >amount of space as >the distance between Saturn and our Sun. Such tight living quarters throw >theories of hot >Jupiter formation into question. Astronomers had thought that hot Jupiters >formed far >away from their parent stars, before migrating inward. > >"In this close-knit system, there would be no room at the outskirts of the >parent star >system for a planet to grow," said Konacki. > >Previously, astronomers had identified planets around about 20 binary stars >and one set of >triple stars. But the stars in those systems had a lot of space between >them. Most >multiple-star arrangements are crowded together and difficult to study. > >Konacki overcame this challenge using a modified version of the radial >velocity, or >"wobble," planet-hunting technique. In the traditional wobble method, a >planet's presence >is inferred by the gravitational tug, or wobble, it induces in its parent >star. The strategy >works well for single stars or far-apart binary and triple stars, but could >not be applied to >close-star systems because the stars' light blends together. > >By developing detailed models of close-star systems, Konacki was able to >tease apart the >tangled starlight. This allowed him to pinpoint, for the first time, the >tug of a planet on a >star snuggled next to other stars. Of 20 systems examined so far, HD >188753, located 149 >light-years away, was the only one found to harbor a planet. > >Hot Jupiters are believed to form out of thick disks, or "doughnuts," of >material that swirl >around the outer fringes of young stars. The disk material clumps together >to form a solid >core, then pulls gas onto it. Eventually, the gas giant drifts inward. The >discovery of a >world under three suns contradicts this scenario. HD 188753 would have >sported a >truncated disk in its youth, due to the disruptive presence of its stellar >companions. That >leaves no room for HD 188753's planet to form, and raises a host of new >questions. > >The masses of the three stars in HD 188753 system range from two-thirds to >about the >same mass as our Sun. The planet is slightly more massive than Jupiter. > >For artist's concepts and other graphics, visit >http://planetquest.jpl.nasa.gov/ . For >information about NASA and agency programs on the Web, visit >http://www.nasa.gov/home/index.html . > >-end- > > > > > > > > > > > >To remove yourself from all mailings from NASA Jet Propulsion Labratory, >please go to http://www.kintera.org/TR.asp?ID=M69907255955433616563365 From owner-argus@setileague.org Thu Jul 14 00:56:14 2005 Received: from seti1.setileague.org (seti1.setileague.org [204.176.91.10]) by Sentry.net (8.13.3/8.13.3) with ESMTP id j6E0uDPE020961 for ; Thu, 14 Jul 2005 00:56:14 GMT Received: (from majordom@localhost) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) id UAA07675 for argus-list; Wed, 13 Jul 2005 20:43:31 -0400 (EDT) X-Authentication-Warning: seti1.setileague.org: majordom set sender to owner-argus@seti1.setileague.org using -f Received: from www.groundcontrol.co.uk (81-178-30-197.dsl.pipex.com [81.178.30.197]) by seti1.setileague.org (8.9.3 (PHNE_24419+JAGae58098)/8.9.3) with ESMTP id UAA07668 for ; Wed, 13 Jul 2005 20:43:26 -0400 (EDT) Received: from davespc by groundcontrol.co.uk (MDaemon.PRO.v8.0.3.R) with ESMTP id md50000039610.msg for ; Thu, 14 Jul 2005 01:42:22 +0100 Message-ID: <00b001c5880c$e3c8cd20$0200a8c0@davespc> Reply-To: "David Ames" From: "David Ames" To: "Mike M." , "SETIpublic" , References: <003a01c5875b$8c623ff0$d6517ece@MIKEMXP> Subject: Argus: Re: SETI public: software question Date: Thu, 14 Jul 2005 01:42:19 +0100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00AD_01C58815.4577B150" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2527 X-MimeOLE: Produc