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Infall, the Butcher-Oemler Effect, and the Descendants of Blue Cluster Galaxies at z~0.6
Kim-Vy H. Tran, Pieter van Dokkum, Garth D. Illingworth +3
Using wide-field HST/WFPC2 imaging and extensive Keck/LRIS spectroscopy, we present a detailed study of the galaxy populations in MS2053--04, a massive, X-ray luminous cluster at z…
Chandra Constraints on the AGN Fraction and Star Formation Rate of Red z>~2 Galaxies in the FIRES MS1054-03 Field
Kate H. R. Rubin, Pieter G. van Dokkum, Paolo Coppi +4
Very deep near-infrared observations have recently uncovered a significant population of red galaxies at redshifts z>2. These distant red galaxies (DRGs) are efficiently selected b…
Discovery of a Transient U-band Dropout in a Lyman-Break Survey: A Tidally-Disrupted Star at z = 3.3?
Daniel Stern, P. G. van Dokkum, Peter Nugent +8
We report the discovery of a transient source in the central regions of galaxy cluster Abell 267. The object, which we call "PALS1", was found in a survey aimed at identifying high…
Stellar Populations and Kinematics of Red Galaxies at z>2: Implications for the Formation of Massive Galaxies
Pieter van Dokkum, Marijn Franx, Natascha Forster Schreiber +13
We recently identified a substantial population of galaxies at z>2 with red rest-frame optical colors. These distant red galaxies (DRGs) are efficiently selected by the simple obse…
Star Formation at z~6: The UDF-Parallel ACS Fields
R. J. Bouwens, G. D. Illingworth, R. I. Thompson +8
We report on the i-dropouts detected in two exceptionally deep ACS fields (B_{435}, V_{606}, i_{775}, and z_{850} with 10 sigma limits of 28.8, 29.0, 28.5, and 27.8, respectively)…
Field E+A Galaxies at Intermediate Redshifts (0.3<z<1)
Kim-Vy H. Tran, Marijn Franx, Garth D. Illingworth +3
We select E+A candidates from a spectroscopic dataset of ~800 field galaxies and measure the E+A fraction at 0.3<z<1 to be 2.7+/-1.1%, a value lower than that in galaxy clusters at…