ethan@utastro.UUCP (Ethan Vishniac) (05/23/84)
[Insert your message here]
This is a brief note on quasar clustering, a subject that
Nigel Sharp and Bill Sebok have just sparred over. I notice
that in the most recent Astrophysical Journal there is an article
by Yee and Green on the clustering of quasars and galaxies.
They observed fields around 108 quasars and control fields about
1 degree away on the sky. They found significant correlation
between galaxies and quasars. The correlation was only present
for low red-shift quasars. In addition the magnitudes of the
clustered galaxies were consistent with galaxies at the distances
indicated by the redshifts of the quasars.
I am not an expert in this, but it seems to show that the galaxy
quasar clustering is due to quasars being located in clusters of
galaxies, and that (if any more proof were needed) quasars really
are as far away as their redshifts indicate.
Any comments?
"Just another Cosmic Cowboy"
Ethan Vishniac
{ut-sally,ut-ngp,kpno}!utastro!ethan
Department of Astronomy
University of Texas
Austin, Texas 78712