10 papers
Cluster Galaxy Populations from z=0.33 - 0.83: Characterizing Evolution with CL1358+62
Kim-Vy Tran, Garth Illingworth, Marijn Franx
We combine HST WFPC mosaics of clusters at multiple redshifts with Keck LRIS spectroscopy to characterize different galaxy populations and how they evolve. By combining quantitativ…
Morphological Evolution and the Ages of Early-Type Galaxies in Clusters
Pieter G. van Dokkum, Marijn Franx
Morphological and spectroscopic studies of high redshift clusters indicate that a significant fraction of present-day early-type galaxies was transformed from star forming galaxies…
Evolution of Cluster Early-Type Galaxies
P. G. van Dokkum, M. Franx, D. D. Kelson +2
The slow evolution of the M/L ratios, colors, and line strengths of cluster early-type galaxies to z=1 suggests that their stars were formed at very high redshift. At the same time…
Lessons from lensed Lyman break galaxies: can dusty Lyman break galaxies produce the submillimetre counts and background?
Paul P. van der Werf, Kirsten Kraiberg Knudsen, Ivo Labb'e +1
Can the submillimetre counts and background be produced by applying a locally derived extinction correction to the population of Lyman break galaxies? We investigate the submillime…
A High Fraction of Mergers in the cluster MS1054-03 at z=0.83
M. Franx, P. G. van Dokkum, D. G. Fabricant +2
We used the Hubble Space Telescope to take a wide field, multicolor image of the high redshift cluster MS1054-03 at z=0.83. The Keck telescope was used to take 200 redshifts in the…
Mass and mass-to-light ratio of galaxy groups from weak lensing
Henk Hoekstra, Marijn Franx, Konrad Kuijken
We have measured for the first time the weak lensing signal due to groups of galaxies. The groups are at intermediate redshifts, and have been identified in the CNOC2 field survey,…