The speaker will be Eran Ofek
Place: Holcblat Hall
Time: Wednesday, 04/Dec/2002, 14:00
Title: Constraints on galaxy mass evolution through the lens redshift distribution
The redshifts of lens galaxies in known gravitational lens systems probe the volume distribution of lensing mass. Following earlier work by Kochanek, we re-derive the lens redshift probability distribution, allowing for mass and number density evolution of the lensing galaxies, and apply this test to a much enlarged sample of lens systems. I will describe the analysis and the main results of this work.