10937( 1) - 04/03/06 10:59 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10937 Version: 1 Check-in Time: 03-Apr-2006 14:59:39 Title Probing the Galaxy Population at z~7-10 Using Archival ACS + NICMOS data ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance AR 15 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Rychard Bouwens University of California - Santa Cruz CoI: Prof. Garth D. Illingworth University of California - Santa Cruz N CoI: Dr. Wei Zheng The Johns Hopkins University N CoI: Mr. Daniel K. Magee University of California - Santa Cruz N CoI: Dr. Marijn Franx Universiteit Leiden N CoI: Dr. John P. Blakeslee Washington State University N ------------------------------------------------------------------------------------ Abstract Recent searches for galaxies at z>=7 have placed a great deal of emphasis on obtaining ultra deep infrared observations to probe down to extremely faint luminosities, either through gravitational lensing or by extremely deep observations with NICMOS. However, to fully understand the evolution of a galaxy population, it is important to cover significant areas as well, both to probe evolution at the bright end of the luminosity function and to locate objects capable for follow-up in other wavebands. We propose to complement current deep studies of the high redshift universe by conducting a comprehensive search for z>=7 objects in all HST fields in the archive with deep ACS and NICMOS data. Particular emphasis will be given to the NICMOS data over the GOODS fields. With current data, we expect to more than quadruple the sizes of current z>=7 samples. In addition to the clear science objectives of this search, the legacy of this program will be a homogeneous reduction of all NICMOS data (~1500 orbits) over the two GOODS fields. ------------------------------------------------------------------------------------