SETI public: Hot Jupiters: Lands of Plenty

• Previous message: LARRY KLAES: "SETI public: Cosmos Episode 10: The Edge of Forever"

Paper: astro-ph/0511583
Date: Fri, 18 Nov 2005 21:35:43 GMT (30kb)

Title: Hot Jupiters: Lands of Plenty

Authors: David Charbonneau

Comments: 8 pages, 2 figures, summary of conference "The Tenth Anniversary
of
51 Peg b: Status and Prospects for Hot Jupiter Studies", held August 22 -
25,
2005
\\
In late August 2005, 80 researchers from more than 15 countries convened for
a 4-day conference entitled ``The Tenth Anniversary of 51 Peg b: Status and
Prospects for Hot Jupiter Studies''. The meeting was held at l'Observatoire
de
Haute-Provence, the location of the 1.93-m telescope and ELODIE spectrograph
used to discover the planetary companion to 51 Peg roughly 10 years ago. I
summarize several dominant themes that emerged from the meeting, including
(i)
recent improvements in the precision of radial velocity measurements of
nearby,
Sun-like stars, (ii) the continued value of individual, newly-discovered
planets of novel character to expand the parameter space with which the
theory
must contend, and (iii) the crucial role of space-based observatories in
efforts to characterize hot Jupiter planets. I also present the returns of
an
informal poll of the conference attendees conducted on the last day of the
meeting, which may be amusing to revisit a decade hence.

\\ ( http://arXiv.org/abs/astro-ph/0511583 , 30kb)

Paper: astro-ph/0511589
Date: Sat, 19 Nov 2005 01:04:35 GMT (72kb)

Title: Submillimeter studies of circumstellar disks in Taurus and Orion

Authors: Jonathan P. Williams and Sean M. Andrews (IfA/Hawaii)

Comments: Conference proceedings for "Revealing the Molecular Universe: One
Telescope is Never Enough"; informal writeup of recently published work for
a
meeting celebrating the career of Jack Welch
\\
We highlight two recent studies of circumstellar disks in the Taurus and
Orion star forming regions. Using the JCMT and CSO, we measure disk fluxes
in
Taurus over a wide range of submillimeter wavelengths and determine the
frequency dependence of the dust opacity. We find clear evidence for a
systematic change in its behavior with time, most readily explained by grain
growth. Using the SMA, we observed the protoplanetary disks (proplyds) in
the
Orion Trapezium cluster. The combination of high resolution, high frequency,
and high sensitivity that this instrument provides made it possible to
resolve
disks from one another, distinguish their emission from background cloud
material and surrounding ionized gas, and to detect thermal dust emission.
This
allowed us to make the first mass measurements of the proplyds and to assess
their viability for planet formation.

\\ ( http://arXiv.org/abs/astro-ph/0511589 , 72kb)

• Previous message: LARRY KLAES: "SETI public: Cosmos Episode 10: The Edge of Forever"

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