archive: Re: SETI [ASTRO] SN 1999ca in NGC 3120

Re: SETI [ASTRO] SN 1999ca in NGC 3120

Larry Klaes ( lklaes@bbn.com )
Fri, 07 May 1999 12:19:56 -0400

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>Date: Thu, 06 May 1999 19:26:36 -0400
>To: "Dr. H. Paul Shuch" <n6tx@setileague.org>
>From: "Dr. Stuart A. Kingsley" <skingsley@coseti.org>
>Subject: Re: SETI [ASTRO] SN 1999ca in NGC 3120
>Cc: LkLaes@bbn.com
>
>If the signal was sufficiently strong, you could use a scanning
>spectrometer to analyze the light as a function of optical wavelength. As
>Paul correctly indicates, a pulsed laser will be relatively very narrow band.
>
>Stuart
>
>
>P.S. Wasn't the UPN SETI segment supposed to have been broadcast last night?
>
>
>
>
>At 02:57 PM 5/6/1999 -0400, you wrote:
>>At 02:42 PM 5/6/99 -0400, Larry Klaes wrote:
>>>How would we be able to tell the difference between a
>>>natural supernova event and an artificial pulsed laser
>>>beacon from an ETI?
>>
>>I'm speculating here (he says, putting on his specs), but it is my
>>understanding that supernovae radiate over a broad spectrum, while even
>>pulsed lasers should be expected to produce relatively narrow-band
>>emissions. The real question is, can current optical receivers distinguish
>>between narrow and wideband signals? Stuart?
>>
>>
>>--------------------------------
>>H. Paul Shuch, Ph.D., CFII, FBIS
>>Executive Director, The SETI League, Inc.
>>433 Liberty Street, PO Box 555
>>Little Ferry NJ 07643 USA
>>voice (201) 641-1770; fax (201) 641-1771
>>n6tx@setileague.org www.setileague.org
>>Project Argus station FN11LH
>>
>>"We Know We're Not Alone!"
>
>Dr. Stuart A. Kingsley, SMIEEE, MIEE, CEng. (skingsley@coseti.org)
>Director, The Columbus Optical SETI Observatory - http://www.coseti.org
>
>Optical SETI E-Commerce Site - http://store.yahoo.com/coseti
>
>SPIE's OSETI III Conference, Photonics West, February 19-21, 2001,
>San Jose Convention Center - http://www.coseti.org/spiepro3.htm
>
>Sky & Telescope:
>December 1998 - http://www.coseti.org/skytel_1.htm
>June 1999 - http://www.coseti.org/skytel_2.htm
>
>Tel: (614) 258-7402, eFax: (707) 313-2546
>
>