!  File:  4083C.PROP
!  Database:  PEPDB
!  Date:  20-FEB-1994:07:57:37

coverpage:

  title_1:         REMNANT STARS IN SUPERNOVA REMNANTS-CONT OF 1098
    sci_cat:       STELLAR ASTROPHYSICS
    proposal_for:  GTO/HSP
    cont_id:       1098
    pi_fname:      ROBERT
    pi_mi:         C.
    pi_lname:      BLESS
    pi_inst:       WISCONSIN, UNIVERSITY OF
    pi_country:    USA
    pi_phone:      (608)262-1715
    keywords_1:    SUPERNOVA REMNANTS; NEUTRON STARS
    hours_pri:     2.22
    num_pri:       10
! end of coverpage

abstract:

    line_1:        In this proposal we will search for a remnant star
    line_2:        associated with SN1987A.  Once detected, we will
    line_3:        study the photometric variability in an attempt to
    line_4:        place important constraints on the mechanisms by
    line_5:        which neutron stars originate.
    line_6:        REVISION HISTORY:  Created 11/18/91;

!
! end of abstract

general_form_proposers:

  lname:           BLESS
    fname:         ROBERT
    mi:            C.
    inst:          WISCONSIN, UNIVERSITY OF
    country:       USA

!

  lname:           DOLAN
    fname:         JOSEPH
    mi:            F.
    inst:          NASA, GODDARD SPACE FLIGHT CENTER
    country:       USA

!

  lname:           ELLIOT
    fname:         JAMES
    mi:            L.
    inst:          MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    country:       USA

!

  lname:           ROBINSON
    fname:         EDWARD
    mi:            L.
    inst:          TEXAS, UNIVERSITY OF
    country:       USA

!

  lname:           WHITE
    fname:         RICHARD
    mi:            L.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!

  lname:           VAN CITTERS
    fname:         G.
    mi:            W.
    inst:          NATIONAL SCIENCE FOUNDATION
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        A search for the remnant star associated with SN1987A will
    line_2:        be conducted.  We will use the 6.0" finding aperture on the
    line_3:        POL tube.  An observation will be made every 6 months until
    line_4:        the pulsar is detected.  Each observation will be searched
    line_5:        for pulsations using FFT methods.

!

  question:        4
    section:       1
    line_1:        Remnant stars are known from presently available upper
    line_2:        limits on most SNR central stars to be fainter than V = 20;
    line_3:        HST is required for this proposal for the following reasons:
    line_4:        (a)  Scintillation does not contaminate the data and hence
    line_5:        pulses in the remnant star will be easier to detect.
    line_6:        (b)  Smaller apertures can be used with HST minimizing
    line_7:        the contamination from the background.
    line_8:        (c)  A long passband (1600-7000 A) can be used which will
    line_9:        maximize the number of photons detected.

!

  question:        7
    section:       1
    line_1:        The HSP wide bandwidth photometric observations of SN1987A
    line_2:        will be analyzed by power spectrum analysis methods to
    line_3:        determine if any pulsation exists (as it does in the Crab
    line_4:        Nebula and 1E2259+586).  Photometric observations will also
    line_5:        be analyzed for longer periodicities which may be present
    line_6:        in the light curve.  The results will be applied to
    line_7:        determining the location, geometry, and motion of the
    line_8:        emitting regions.

!
!end of general form text

general_form_address:

  lname:           DOLAN
    fname:         JOSEPH
    mi:            F.
    category:      CON
    inst:          NASA, GODDARD SPACE FLIGHT CENTER
    addr_1:        CODE 681
    city:          GREENBELT
    state:         MD
    zip:           20771
    country:       USA
    phone:         (301)286-5920

!

  lname:           BLESS
    fname:         ROBERT
    mi:            C.
    category:      PI
    inst:          WISCONSIN, UNIVERSITY OF
    addr_1:        SPACE ASTRONOMY LAB.
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        GSC9162.01072
    descr_1:       OFFSET TARGET FOR SN1987A
    pos_1:         RA = 05H 35M 13.266S +/- 0.037S,
    pos_2:         DEC = -69D 14' 35.315" +/- 0.2"
    equinox:       2000
    comment_1:     POSREF = TAYLOR.
    comment_2:     POSREF FROM WEST, ET AL.
    comment_3:     A & A 177.L1 (1987).
    fluxnum_1:     1
    fluxval_1:     V=12.52

!

    targnum:       2
    name_1:        SN1987A
    descr_1:       SUPERNOVA IN LMC
    pos_1:         RA-OFF = 14.741S +/- 0.037S,
    pos_2:         DEC-OFF = -96.318" +/- 0.2",
    pos_3:         FROM 1
    equinox:       2000
    comment_1:     POSREF = JDOLAN,
    comment_2:     POSREF FROM GIRARD,VAN ALTENA
    comment_3:     AND LOPEZ, ASTRON. J.,V95,58,1988.
    comment_4:     RA = 05H 35M 28.007S +/- 0.005S.
    comment_5:     DEC = -69D 16' 11.633" +/- 0.03".
    fluxnum_1:     1
    fluxval_1:     V=20

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      GSC9162.01072
    config:        HSP/POL
    opmode:        ACQ
    num_exp:       1
    time_per_exp:  40S
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 2;
    req_2:         CYCLE 2;
    comment_1:     NOTE:  SAMPLE-TIME=0.1S.

!

    linenum:       2.000
    targname:      SN1987A
    config:        HSP/POL
    opmode:        SINGLE
    aperture:      6.0
    sp_element:    F160LP
    num_exp:       1
    time_per_exp:  40M
    priority:      1
    param_1:       SAMPLE-TIME=0.0001,
    param_2:       DATA-FORMAT=BYTE,
    param_3:       PRECISION=HIGH,
    req_1:         CYCLE 2;
    req_2:         RT-ANALYSIS;
    comment_1:     EXPOSURE TIME=40M OR MAXIMUM TIME
    comment_2:     POSSIBLE IN ONE ORBIT.
    comment_3:     TDRSS DOWNLINK REQUIRED.

!

    linenum:       3.000
    targname:      GSC9162.01072
    config:        HSP/POL
    opmode:        ACQ
    num_exp:       1
    time_per_exp:  40S
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 4;
    req_2:         CYCLE 2;
    req_3:         AFTER 2 BY 180D +/- 30D;
    comment_1:     NOTE:  SAMPLE-TIME=0.1S.

!

    linenum:       4.000
    targname:      SN1987A
    config:        HSP/POL
    opmode:        SINGLE
    aperture:      6.0
    sp_element:    F160LP
    num_exp:       1
    time_per_exp:  40M
    priority:      1
    param_1:       SAMPLE-TIME=0.0001,
    param_2:       DATA-FORMAT=BYTE,
    param_3:       PRECISION=HIGH,
    req_1:         CYCLE 2;
    req_2:         RT-ANALYSIS;
    comment_1:     EXPOSURE TIME=40M OR MAXIMUM TIME
    comment_2:     POSSIBLE IN ONE ORBIT.
    comment_3:     TDRSS DOWNLINK REQUIRED.

!
! end of exposure logsheet

! No scan data records found