!  File:  3188C.PROP
!  Database:  PEPDB
!  Date:  18-FEB-1994:21:11:05

coverpage:

  title_1:         STELLAR FORMATION AND EVOLUTION (WF/PC-17)
    title_2:       CYCLE 1
    sci_cat:       STELLAR ASTROPHYSICS
    proposal_for:  GTO/WFC
    cont_id:       1121
    pi_title:      PROF.
    pi_fname:      JAMES
    pi_mi:         A.
    pi_lname:      WESTPHAL
    pi_inst:       CALTECH
    pi_country:    USA
    pi_phone:      (818) 356-4900
    keywords_1:    STAR FORMATION, STELLAR EVOLUTION
    hours_pri:     5.02
    num_pri:       17
    pi_position:   PROFESSOR OF PLANETA
! end of coverpage

abstract:

    line_1:        High resolution images will be obtained for a small number of T Tauri stars,
    line_2:        Herbig-Haro objects, and objects whose evolutionary state is uncertain.
    line_3:        Most of the young stellar objects are in the Taurus complex, which is near
    line_4:        enough that the high resolution afforded by ST will explore physical scales
    line_5:        never before seen in these objects. Limited temporal coverage will also be
    line_6:        obtained to search for structural variations at small scales.

!
! end of abstract

general_form_proposers:

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    inst:          CALTECH
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        Multiple exposures, mostly in F702W and F850LP, some accompanied by F547M and
    line_2:        polarizers, are planned for each object. Some T Tauri stars and HH objects are
    line_3:        revisited after the passage of two years to look for changes in structure.

!

  question:        6
    section:       1
    line_1:        The limiting noise in most of these exposures is readout noise, so exposures
    line_2:        must not be interrupted. Most of the exposures are either short or
    line_3:        narrow-band, so the sky brightness is not critical; dark time and observations
    line_4:        near the antisolar meridian are not required.

!

  question:        13
    section:       1
    line_1:        Images of nearby protostellar objects will be obtained to look for
    line_2:        small-scale structure and motion in broad-band light, some narrow-band
    line_3:        images, and polarization. The massive young objects LkHA 101 and R136a,
    line_4:        and R Mon will also be investigated for small-scale structure.

!
!end of general form text

general_form_address:

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    category:      PI
    inst:          CALTECH

!

  lname:           GUNN
    fname:         JAMES
    mi:            E.
    category:      CON
    inst:          PRINCETON UNIVERSITY
    addr_1:        ASTROPHYSICAL SCIENCE
    addr_2:        PEYTON HALL
    city:          PRINCETON
    state:         NJ
    zip:           08540
    country:       USA
    phone:         (609) 452-3802

!

  lname:           KELSALL
    fname:         THOMAS
    category:      CON
    inst:          NASA, GODDARD SPACE FLIGHT CENTER
    addr_1:        CODE 693
    addr_2:        BLDG. 2, RM. 225
    city:          GREENBELT
    state:         MD
    zip:           20771
    country:       USA
    phone:         (301) 344-7865

!

  lname:           FABER
    fname:         SANDRA
    mi:            M.
    category:      CON
    inst:          UC SANTA CRUZ - LICK OBSERVATORY
    addr_1:        NATURAL SCIENCE II, RM 169
    city:          SANTA CRUZ
    state:         CA
    zip:           95064
    country:       USA
    phone:         (408) 429-2944

!
! end of general_form_address records

fixed_targets:

    targnum:       3
    name_1:        XZ-HL-TAU
    descr_1:       T TAURI STAR
    pos_1:         RA = 04H 28M 45.21S +/- 0.2",
    pos_2:         DEC = +18D 07' 35.7" +/- 0.2"
    equinox:       1950

!

    targnum:       19
    name_1:        PSF-TAU
    descr_1:       BRIGHT PSF STAR
    pos_1:         RA = 04H 19M 47.5S +/- 2",
    pos_2:         DEC = +15D 37' 39" +/- 2"
    equinox:       2000
    comment_1:     PSF SP. TYPE K0.
    comment_2:     GAMMA TAU = BS 1346
    fluxnum_1:     1
    fluxval_1:     V=3.65 +/- 0.2

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       231.000
    targname:      XZ-HL-TAU
    config:        PC
    opmode:        IMAGE
    aperture:      P6
    sp_element:    F702W
    num_exp:       1
    time_per_exp:  80S
    priority:      2
    param_1:       CR-SPLIT=NO,
    param_2:       PRE-FLASH=YES
    req_1:         GROUP 231-234 NO GAP;
    req_2:         CYCLE 1 / 231-235;
    req_3:         GUIDE TOL 0.030" / 231-235
    comment_1:     CYCLE 1 REVISION;
    comment_2:     BC/JJH/RML, 2/28/91

!

    linenum:       232.000
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F656N
    num_exp:       2
    time_per_exp:  1800S
    priority:      ^
    param_1:       CR-SPLIT=0.5,
    param_2:       CR-TOLERANCE=0.0,
    param_3:       PRE-FLASH=YES
    req_1:         SAME POS FOR 232-234 AS 231;
    req_2:         SAME ORIENT FOR 232-234 AS 231
    comment_1:     ADJUST IF NECESSARY EXPOSURE
    comment_2:     TIME BY +/- 20% TO FIT WITHIN
    comment_3:     ONE ORBIT.

!

    linenum:       233.000
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F631N
    num_exp:       ^
    time_per_exp:  1800S
    priority:      ^
    param_1:       ^
    comment_1:     ADJUST IF NECESSARY EXPOSURE
    comment_2:     TIME BY +/- 20% TO FIT WITHIN
    comment_3:     ONE ORBIT.

!

    linenum:       234.000
    targname:      ^
    config:        ^
    opmode:        ^
    aperture:      ^
    sp_element:    F673N
    num_exp:       ^
    time_per_exp:  1800S
    priority:      ^
    param_1:       ^
    comment_1:     ADJUST IF NECESSARY EXPOSURE
    comment_2:     TIME BY +/- 20% TO FIT WITHIN
    comment_3:     ONE ORBIT.

!

    linenum:       235.000
    targname:      PSF-TAU
    config:        PC
    opmode:        IMAGE
    aperture:      P6
    sp_element:    F656N
    num_exp:       2
    time_per_exp:  0.3S
    priority:      2
    param_1:       CR-SPLIT=NO,
    param_2:       PRE-FLASH=YES
    req_1:         GROUP 234-235 WITHIN 2D
    comment_1:     BRIGHT PSF STAR FOR NARROW
    comment_2:     FILTERS.  ON COARSE TRACK.
    comment_3:     USE 785LP PSFMONITOR EXP
    comment_4:     FOR THE 702W PSF.

!
! end of exposure logsheet

! No scan data records found