9938(  1) - 04/04/03 10:25  - [  1]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      9938
                                                       Version: 1
                                                       Check-in Date: 04-Apr-2003
                                                                      10:25:10

1.Proposal Title:
Photometry and Photometric Redshifts of Faint Galaxies in the Ultra-Deep Field
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2. Proposal For  3. Cycle
AR               11
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4. Investigators
                                                                                     Contact?
    PI: Kenneth Lanzetta                  State University of New York at Stony
                                          Brook
   CoI: Dr. Hsiao-Wen Chen                Massachusetts Institute of Technology         N
   CoI: Dr. Alberto Fernandez-Soto        Osservatorio Astronomico di Brera, Milano     N
   CoI: Mr. Stefan Gromoll                State University of New York at Stony         N
                                          Brook
   CoI: Prof. Paul Hickson                University of British Columbia                N
   CoI: Dr. John Webb                     University of New South Wales                 N

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5. Abstract

We propose to apply our optimal photometry and photometric redshift techniques to
all available space- and ground-based observations of the UDF. We further propose to
develop and apply an extension of our techniques to optimally detect and identify
transient point sources (i.e. supernovae) using all available time- and wavelength-
sampled observations of the UDF. Our primary scientific objectives are (1) to trace
faint galaxies to low surface brightness limits in order to assess the effects of
cosmological surface brightness dimming on the rest-frame ultraviolet luminosity
density of the universe versus redshift and (2) to measure the supernova rate
density versus magnitude and redshift to very faint magnitudes and very high
redshifts.
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                                                9938(  1) - 04/04/03 10:25  - [  2]

            Summary Form for Proposal  9938

  Item                         Used in this proposal
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  Proposal Category            AR
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