Two galaxy clusters at z=1.2

Details Two galaxy clusters at z=1.2 Two galaxy clusters at z=1.2

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.6703d&link_type=abstract

American Astronomical Society, 182nd AAS Meeting, #67.03; Bulletin of the American Astronomical Society, Vol. 25, p.914

Other

1

Scientific paper

I present optical and near--infrared observations of two radio galaxies at z=1.2. The infrared images were obtained with the new large--format (NICMOS III) infrared imaging camera (IRIM) at KPNO, and reveal the presence of rich galaxy clusters around the radio sources. The clusters are essentially invisible in deep optical images, as they appear to be dominated by a population of galaxies with extremely red colors (R-K > 5.5) similar to those expected for relatively unevolved early--type galaxies at z > 1. Deep images taken with the same instrument of other (non--radio galaxy) fields confirm that galaxies with such red colors are uncommon among random samples of faint field galaxies, and that these apparent clusters around the radio galaxies represent a very strong statistical excess. The implications of these observations for high redshift cluster surveys, radio galaxy and quasar environments, and color evolution of galaxy cluster populations are briefly considered.

Affiliated with

Also associated with

No associations

Rating

Two galaxy clusters at z=1.2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Two galaxy clusters at z=1.2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two galaxy clusters at z=1.2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1850325