8367(  2) - 12/18/98 16:49  - [  1]

    PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS   ST ScI Use Only
                                                       ID:      8367
                                                       Version: 2
                                                       Check-in Date: 18-Dec-1998
                                                                      16:48:01

1.Proposal Title:
Testing Protostellar Collapse and Outflow Models
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2. Proposal For  3. Cycle
AR               8
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4. Investigators
                                                                                     Contact?
    PI: Barbara Whitney                   Prism Computational Sciences, Inc.
   CoI: Dr. Kenneth Wood                  Smithsonian Astrophysical Observatory         N
   CoI: Prof. Adam Frank                  University of Rochester                       N

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5. Abstract

This proposal is to model high-spatial resolution WFPC2 and NICMOS imagery of the
Taurus protostars. By applying 3-D radiation transfer codes that include accurate
treatment of dust scattering and clumping effects, and 2-D hydrodynamic codes to the
best available high-spatial resolution imagery of these sources, we will learn more
about the following scientific issues: 1) if the envelope density really matches the
rotationally-flattened infall solution, or is it in fact more complicated than that?
We will include other infall solutions such as magnetic collapse and collapse from
clouds with initial motion. 2) how the outflows shape the cavities and disperse the
envelope; we will use hydrodynamic simulations to test if our presumed geometries
are physically plausible and produce images that match the observations. 3) how
prevalent are multipolar cavities, and 4) the dust properties in protostars.
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  Data Distribution

  Paper Products:  NO
  Media:           ELECTRONIC
  Blocking Factor: 10
  Ship To:         PI_Address
  Ship Via:
  Email:
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                                                8367(  2) - 12/18/98 16:49  - [  2]

            Summary Form for Proposal  8367

  Item                         Used in this proposal
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  Proposal Category            AR
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