2 papers
astro-ph2000
The Fraction of High Redshift Galaxies in Deep Infrared Selected Field Galaxy Samples
P. Eisenhardt, R. Elston, S. A. Stanford +4
Recent results on the incidence of red galaxies in a > 100 square arcminute field galaxy survey to K=20 and a K=22 survey of the Hubble Deep Field are presented. We argue that a si…
astro-ph2000
The Most Distant X-ray Clusters and the Evolution of their Space Density
P. Rosati, S. Borgani, R. Della Ceca +3
We briefly review our current knowledge of the space density of distant X-ray clusters as measured by several ROSAT serendipitous surveys. We compare old and new determinations of…