7537(  1) - 12/14/96 00:45  - [  0]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      7537
                                                       Version: 1
                                                       Check-in Date: 13-Dec-1996
                                                                      18:19:02

1.Proposal Title:
A New Technique for Photometry of Low Luminosity AGNs Using HST Reference Images
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2. Scientific Category   3. Proposal For  4. Cycle
AGN/QUASARS                 AR               7
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5. Investigators
                                                                                     Contact?
    PI: William Romanishin                University of Oklahoma

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6. Abstract

I have developed a new technique for doing accurate photometry of ``inconspicuous
AGNs'' (those that have luminosities less than their host galaxies), using a
combination of groundbased CCD data and a single high- resolution HST image of each
object. Traditional CCD photometric measurement techniques do not work very well for
such objects, due to problems disentangling AGN and host galaxy light, particularly
for the typical poor seeing data from small telescopes used for monitoring AGNs. The
technique needs a ``reference host galaxy image'', essentially a high-resolution
image of the host galaxy with the AGN contribution removed. I wish to use the HST
archive images to derive such reference images for a sample of 2 to 3 dozen
inconspicuous AGNs. A summer student and I have developed IRAF scripts to automate
the photometric reduction process, and have demonstrated its use on a sample of 180
groundbased CCD images of NGC 1275, using an HST archive
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  Data Distribution

  Media:           ELECTRONIC
  Blocking Factor: 10
  Ship To:         PI_Address
  Ship Via:
  Email:                                                              ,
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                                                7537(  1) - 12/14/96 00:45  - [  1]

            Summary Form for Proposal  7537

  Item                         Used in this proposal
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  Proposal Category            AR
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  Scientific Category          AGN/QUASARS
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