1.2k citations · 14k across the 71 of their papers we have counts for
13 papers · 1 filter
The Environment of M85 optical transient 2006-1: constraints on the progenitor age and mass
E. O. Ofek, S. R. Kulkarni, A. Rau +11
M85 optical transient 2006-1 (M85 OT 2006-1) is the most luminous member of the small family of V838 Mon-like objects, whose nature is still a mystery. This event took place in the…
Mass-Selection and the Evolution of the Morphology-Density Relation from z=0.8 to z=0
B. P. Holden, G. D. Illingworth, M. Franx +11
We examined the morphology-density relations for galaxy samples selected by luminosity and by mass in each of five massive X-ray clusters from z=0.023 to 0.83 for 674 spectroscopic…
BUCS: An Engine For Generating Realistic Imaging Data for Deep Galaxy Fields
Rychard J. Bouwens, Garth D. Illingworth, Daniel Magee
Today's deep high resolution multiwavelength surveys contain a wealth of information about galaxies at different epochs. To fully exploit this information, it is useful to be able…
Evolution in the Cluster Early-type Galaxy Size-Surface Brightness Relation at z =~ 1
B. P. Holden, J. P. Blakeslee, M. Postman +7
We investigate the evolution in the distribution of surface brightness, as a function of size, for elliptical and S0 galaxies in the two clusters RDCS J1252.9-2927, z=1.237 and RX…
The Fundamental Plane of Cluster Ellipticals at z = 1.25
B. P. Holden, A. van der Wel, M. Franx +7
Using deep HST ACS imaging and VLT FORS2 spectra, we determined the velocity dispersions, effective radii and surface brightnesses for four early-type galaxies in the clu…
The Luminosity Functions of the Galaxy Cluster MS1054-0321 at z=0.83 based on ACS Photometry
Tomotsugu Goto, Marc Postman, Nicholas J. G. Cross +41
We present new measurements of the galaxy luminosity function (LF) and its dependence on local galaxy density, color, morphology, and clustocentric radius for the massive z=0.83 cl…
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…
Faint Galaxies in deep ACS observations
N. Benitez, H. Ford, R. Bouwens +33
We present the analysis of the faint galaxy population in the Advanced Camera for Surveys (ACS) Early Release Observation fields VV 29 (UGC 10214) and NGC 4676. Here we attempt to…
Star Formation at z~6: i-dropouts in the ACS GTO fields
R. J. Bouwens, G. D. Illingworth, P. Rosati +33
Using an i-z dropout criterion, we determine the space density of z~6 galaxies from two deep ACS GTO fields with deep optical-IR imaging. A total of 23 objects are found over 46 ar…
Discovery of Two Distant Type Ia Supernovae in the Hubble Deep Field North with the Advanced Camera for Surveys
John P. Blakeslee, Zlatan I. Tsvetanov, Adam G. Riess +30
We present observations of the first two supernovae discovered with the recently installed Advanced Camera for Surveys (ACS) on the Hubble Space Telescope. The supernovae were foun…
An Automatic Image Reduction Pipeline for the Advanced Camera for Surveys
J. P. Blakeslee, K. R. Anderson, G. R. Meurer +2
We have written an automatic image processing pipeline for the Advanced Camera for Surveys (ACS) Guaranteed Time Observation (GTO) program. The pipeline, known as Apsis, supports t…
The afterglow, the redshift, and the extreme energetics of the gamma-ray burst 990123
S. R. Kulkarni, S. G. Djorgovski, S. C. Odewahn +26
Afterglow, or long-lived emission, has now been detected from about a dozen well-positioned gamma-ray bursts. Distance determinations made by measuring optical emission lines from…
The Velocity Dispersion of MS1054-03: A Massive Galaxy Cluster at High Redshift
Kim-Vy H. Tran, Daniel D. Kelson, Pieter van Dokkum +3
We present results from a dynamical study of the high redshift, massive, X-ray luminous galaxy cluster MS1054--03. We significantly increase the number of confirmed cluster members…