8763(  1) - 12/30/99 13:06  - [  1]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      8763
                                                       Version: 1
                                                       Check-in Date: 30-Dec-1999
                                                                      12:32:54

1.Proposal Title:
The Cause of Narrow Absorption Lines Intrinsic to Quasi--Stellar Objects
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2. Proposal For  3. Cycle
AR               9
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4. Investigators
                                                                                     Contact?
    PI: Jane C. Charlton                  The Pennsylvania State University
   CoI: Mr. Rajib Ganguly                 The Pennsylvania State University             N
   CoI: Prof. Michael Eracleous           The Pennsylvania State University             N
   CoI: Prof. W. Nielsen Brandt           The Pennsylvania State University             N

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5. Abstract

We propose to investigate the archived FOS (R=1300) observations of quasars for the
purpose of understanding the origins of low redshift (z<1) associated (Delta v<5000
kms) CIV narrow absorption lines (NALs). Many of these NALs are intrinsic to the
quasar and are likely to be related to outflow or inflow from the central engine.
Therefore, their rate of incidence and its relationship to other quasar properties
will constrain the geometry, ionization conditions, and kinematics of these flows.
From studies of high redshift quasars, the existence of intrinsic NALs is likely to
require some complex combination of QSO properties, and results from ground--based
work in this area have left many questions as yet unanswered. Are NALS the result of
orientation relative to the line of sight? Is it related to the relative (to
Eddington) luminosity of the accretion disk? Only at low redshift, with data from
the HST/FOS archive, can we study quasars with a range of luminosities, and
accurately determine their radio morphologies and X--ray properties. Employing radio
and X--ray data (luminosity, spectral index, morphology) from both the literature
and online catalogs (e.g. NVSS, RASS), we will perform multivariate and 2--sample
statistical tests to determine the combination of QSO properties that give rise to
the presence of NALs along the line--of--sight.
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                                                8763(  1) - 12/30/99 13:06  - [  2]

            Summary Form for Proposal  8763

  Item                         Used in this proposal
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  Proposal Category            AR
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