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

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

Dr. H. Paul Shuch ( (no email) )
Thu, 06 May 1999 14:57:22 -0400

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
Project Argus station FN11LH

"We Know We're Not Alone!"