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New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
Adam G. Riess, Louis-Gregory Strolger, Stefano Casertano +18
We have discovered 21 new Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST) and have used them to trace the history of cosmic expansion over the last 10 billion yea…
Clustering of the IR Background Light with Spitzer: Contribution from Resolved Sources
Ian Sullivan, Asantha Cooray, Ranga-Ram Chary +14
We describe the angular power spectrum of resolved sources at 3.6 microns (L-band) in Spitzer imaging data of the GOODS HDF-N, the GOODS CDF-S, and the NDWFS Bootes field in severa…
Comparing dynamical and photometric-stellar masses of early-type galaxies at z ~ 1
A. Rettura, P. Rosati, V. Strazzullo +14
The purpose of this study is to explore the relationship between galaxy stellar masses, based on multiwavelength photometry spectral template fitting and dynamical masses based on…
The XMM Cluster Survey: A Massive Galaxy Cluster at z=1.45
S. A. Stanford, A. K. Romer, K. Sabirli +14
We report the discovery of XMMXCS J2215.9-1738, a massive galaxy cluster at z =1.45, which was found in the XMM Cluster Survey. The cluster candidate was initially identified as an…
The Discovery of Three New z>5 Quasars in the AGN and Galaxy Evolution Survey
Richard J. Cool, Christopher S. Kochanek, Daniel J. Eisenstein +15
We present the discovery of three z>5 quasars in the AGN and Galaxy Evolution Survey (AGES) spectroscopic observations of the NOAO Deep Wide-Field Survey (NDWFS) Bootes Field. Thes…
The Stellar Masses and Star Formation Histories of Galaxies at z ~ 6: Constraints from Spitzer Observations in the Great Observatories Origins Deep Survey
Haojing Yan, Mark Dickinson, Mauro Giavalisco +3
Using the deep Spitzer IRAC observations of the Great Observatories Origins Deep Survey (GOODS), we study the stellar masses and star formation histories of galaxies at z ~ 6. Our…