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From: sharp@kpnoa.UUCP
Newsgroups: net.astro.expert
Subject: Re: quasars and the history of the universe
Message-ID: <338@kpnoa.UUCP>
Date: Sat, 19-May-84 01:14:14 EDT
Article-I.D.: kpnoa.338
Posted: Sat May 19 01:14:14 1984
Date-Received: Sun, 20-May-84 00:43:55 EDT
References: <291@utastro.UUCP>, <2130@brl-vgr.ARPA>, <346@astrovax.UUCP> <2156@brl-vgr.ARPA>, <350@astrovax.UUCP>
Organization: Natl. Optical Astronomy Observatories   Tucson AZ  USA
Lines: 15

I cannot let this go without one quick comment.  Known quasars are definitely
NOT distributed uniformly around the sky, and there is a big debate about the
causes of this.  Even on the most conservative view, quasars are clustered to
each other.  The articles by Seldner&Peebles, by Nieto&Seldner, and by Bacon
&Nieto and references therein are essential reading.  I can give full references
if needed, but at the moment it is not possible to say other than that quasar
searches have not yet been uniform over the sky.  Whether there is something
other than selection effects involved must be a moot point.
-- 

	Nigel Sharp     National Optical Astronomy Observatories
			Tucson, Arizona			(602) 325-9273	

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