!   $Id: 5516,v 10.1 1994/10/12 17:57:54 pepsa Exp $



coverpage:

  title_1:         A WFPC2 SNAPSHOT OF R136A
    sci_cat:       STELLAR POPULATIONS
    proposal_for:  SMC/ERO
    pi_fname:      SARA
    pi_mi:         R.
    pi_lname:      HEAP
    pi_inst:       NASA, GODDARD SPACE FLIGHT CENTER
    pi_country:    USA
    pi_phone:      301-286-5359
    keywords_1:    HOT STARS, MASSIVE STARS, CLUSTERS
    hours_pri:     0.40
    num_pri:       1
    wf_pc:         Y
! end of coverpage

abstract:

    line_1:        R136a has historical importance in that Hubble images of
    line_2:        of the stellar cluster, taken in July 1990 by the GHRS
    line_3:        team, were the first scientifically interesting pictures
    line_4:        taken by Hubble. The 40S picture showed without a doubt the
    line_5:        superiority of Hubble over groundbased telescopes. A few days
    line_6:        later, there was a press conference based on this picture
    line_7:        of R136a, and the first ERO program was started in ernest.
    line_8:        We now propose to repeat the imagery of R136a with WFPCs.
    line_9:        The July 1990 picture was a 40S image taken with PC6 at F368M.
    line_10:       This time, we will take a series of 3 pictures (5S, 10S, and
    line_11:       20S) pictures with PC1 at F336W. We will compare the new
    line_12:       with: (1) the original July 1990 picture;
    line_13:       (2) "deep" PC exposures that were the basis of study by
    line_14:       Campbell et al. (1992), and Malumuth & Heap (1993).
    line_15:       (3) the predicted field, as shown by Heap in an April
    line_16:       press release and by Heap & Malumuth (1992).
    line_17:       These pictures are also essential as "early acquisition"
    line_18:       pictures for the GHRS ERO program on R136a.

!
! end of abstract

general_form_proposers:

  lname:           HEAP
    fname:         SARA
    mi:            R.
    inst:          NASA, GODDARD SPACE FLIGHT CENTER
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        This program will take three short exposures
    line_2:        (5S, 10S, 20S) of R136a with PC1 at F336W.

!

  question:        4
    section:       1
    line_1:

!

  question:        5
    section:       1
    line_1:        This program is in some sense an early acquisition
    line_2:        for the GHRS ERO program on R136a. The PC1 pictures should
    line_3:        be taken BEFORE the GHRS spectra. (This should not be hard
    line_4:        to do, since the GHRS ERO program uses Side 1, which must
    line_5:        first be recommissioned.)

!

  question:        6
    section:       1
    line_1:        NONE

!

  question:        7
    section:       1
    line_1:        The data need to be processed as well as possible, with
    line_2:        whatever bias, flat, and dark frames are available at the
    line_3:        time. We will work with the ST ScI and WFPC2 team to reduce
    line_4:        the images. After reduction, we will make a comparison with
    line_5:        (1) the original 40S F368M image, and the (2) the original
    line_6:        ERO F336W images of R136a. We will also make a comparison to
    line_7:        simulations of the field as seen by PC1, based on photometry
    line_8:        of WFPC images of R136a.

!

  question:        8
    section:       1
    line_1:

!

  question:        9
    section:       1
    line_1:

!

  question:        10
    section:       1
    line_1:        GSFC will provide the financial resources
    line_2:        and computer resources for the data analysis.

!
!end of general form text

general_form_address:

  lname:           HEAP
    fname:         SARA
    mi:            R
    category:      PI
    inst:          GODDARD SPACE FLIGH CENTER
    city:          GREENBELT
    state:         MD
    country:       USA
    phone:         301-286-5359

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        R136
    descr_1:       D,203
    pos_1:         RA = 05H 38M 42.50S +/- 0.15S,
    pos_2:         DEC=-69D 06' 02.8"  +/- 0.5"
    equinox:       J2000
    comment_1:     #1 IS THE U MAGNITUDE OF R136A1,
    comment_2:     THE BRIGHTEST STAR IN R136
    fluxnum_1:     1
    fluxval_1:     U=12.09
    fluxnum_2:     1
    fluxval_2:     B-V=-.24

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      R136
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  5S
    s_to_n:        40
    fluxnum_1:     1
    priority:      1
    req_1:         CYCLE 4;
    comment_1:     EXPECT 1700 COUNTS IN BRIGHTEST PIXEL
    comment_2:     OF BRIGHTEST STAR, R136A1 U=12.09

!

    linenum:       2.000
    targname:      R136
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  10S
    s_to_n:        58
    fluxnum_1:     1
    priority:      1
    req_1:         CYCLE 4;
    comment_1:     EXPECT MAXIMUM IF 3400 COUNTS/PIX
    comment_2:     IN BRIGHTEST STAR,U=12.09

!

    linenum:       3.000
    targname:      R136
    config:        WFPC2
    opmode:        IMAGE
    aperture:      PC1
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  20S
    fluxnum_1:     1
    priority:      1
    req_1:         CYCLE 4;
    comment_1:     BRIGHTEST STARS SHOULD SATURATE.
    comment_2:     A U=13.60 STAR SHOULD HAVE 1700
    comment_3:     COUNTS MAXIMUM.

!
! end of exposure logsheet

! No scan data records found