5803(  0) - 07/18/95 18:02  - [  1]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      5803
                                                       Version: **********
                                                       Check-in Date: **********

1.Proposal Title:
Archival Survey for Moderate-Redshift Damped Lyman-alpha Absorption Systems
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2. Scientific Category   3. Proposal For  4. Cycle
Quasars                     AR               5
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5. Investigators
                                                                                     Contact?
    PI: Kenneth M. Lanzetta               State University of New York at Stony
                                          Brook
   CoI: Arthur M. Wolfe                   University of California, San Diego           N
   CoI: Saswato Das                       State University of New York at Stony         N
                                          Brook

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6. Abstract

We will use archival  HST spectra of QSOs, BL Lac objects, and Seyfert galaxies to
perform a systematic, unbiased survey for moderate-redshift damped LyAlpha
absorption systems.  This survey will complement and extend a similar survey that
has been carried out using  IUE.  The primary goals of the  HST survey are (1) to
accurately determine statistical properties of moderate-redshift damped Ly-alpha\
absorption systems, including the rate of incidence, cosmological mass density, and
column density distribution, and (2) to identify moderate- redshift damped Ly-alpha\
absorption systems for further detailed study.
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  Observations Description
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  Real Time Justification
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  Calibration Justification
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  Additional Comments
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  Data Distribution

  Media:           8MM
  Blocking Factor: 10
  Ship To:         PI_Address
  Ship Via:        UPS
  Email:                                                              ,
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                                                5803(  0) - 07/18/95 18:02  - [  2]

            Summary Form for Proposal  5803

  Item                         Used in this proposal
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  Proposal Category            AR
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  Scientific Category          Quasars
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