3 papers
astro-ph.CO2009★ 1 cited
Exploring Dark Energy with Next-Generation Photometric Redshift Surveys
Hu Zhan, Andreas Albrecht, Asantha Cooray +15
The coming decade will be an exciting period for dark energy research, during which astronomers will address the question of what drives the accelerated cosmic expansion as first r…
astro-ph2008★ 78 cited
z~7-10 Galaxies behind Lensing Clusters: Contrast with Field Search Results
Rychard J. Bouwens, Garth D. Illingworth, Larry D. Bradley +6
We conduct a search for z>~7 dropout galaxies behind 11 massive lensing clusters using 21 arcmin**2 of deep HST NICMOS, ACS, and WFPC2 image data. In total, over this entire area,…
astro-ph2007★ 136 cited
Principal Component Analysis of the Time- and Position-Dependent Point Spread Function of the Advanced Camera for Surveys
M. J. Jee, J. P. Blakeslee, M. Sirianni +3
We describe the time- and position-dependent point spread function (PSF) variation of the Wide Field Channel (WFC) of the Advanced Camera for Surveys (ACS) with the principal compo…