10687( 1) - 04/05/05 12:38 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 10687 Version: 1 Check-in Date: 05-Apr-2005 16:38:29 1.Proposal Title: Are Our Ideas About Quasar Absorption Lines Consistent with Galaxy Images? ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle 4. Parallel Pointing Tolerance AR 14 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Dr. David A. Turnshek University of Pittsburgh CoI: Dr. Andrew J. Connolly University of Pittsburgh N CoI: Dr. Eric M. Monier SUNY at Brockport N CoI: Dr. Sandhya M. Rao University of Pittsburgh N CoI: Dr. Ravi K. Sheth University of Pennsylvania N ------------------------------------------------------------------------------------ 6. Abstract We propose to develop a new, more physical method to describe QSO absorption-line statistics and their relationship to galaxies visible in the sky. We propose to apply this method to the Hubble Ultra Deep Field (UDF). Using results on QSO absorption-line statistics and direct observations of galaxies that give rise to QSO absorption lines, we will develop a prescription for the gaseous cross-sections surrounding galaxies. We will apply this prescription to the UDF galaxies, simulate sightlines through the UDF galaxies, and infer QSO absorption-line statistics which are expected given the observed UDF galaxy properties. The prescription will be iterated until consistency with observed QSO absorption-line statistics is obtained. We believe that such a study can help bridge the gap between traditional QSO absorption-line and galaxy imaging surveys. ------------------------------------------------------------------------------------ 10687( 1) - 04/05/05 12:38 - [ 2] Summary Form for Proposal 10687 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category AR ------------------------------------------------------------------------------------------------------------------------------------