!  File:  1114C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:02:16:19

coverpage:

  title_1:         STELLAR POPULATIONS AND CLUSTERS IN ELLIPTICAL GALAXIES
    title_2:       (WF/PC-11): CYCLE 3 AND FUTURE-CYCLE CONTINUATION
    sci_cat:       STELLAR POPULATIONS
    proposal_for:  GTO/WFC
    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:    STELLAR POPULATIONS, GALAXIES, GLOBULAR CLUSTERS,
    keywords_2:    DISTANCE INDICATORS, HUBBLE CONSTANT
    hours_pri:     14.60
    num_pri:       10
    pi_position:   PROFESSOR OF PLANETA
! end of coverpage

abstract:

    line_1:        Much of the luminous matter in the universe lies in large ellipitcal galaxies,
    line_2:        but they are the type for which we know the least about stellar content. With
    line_3:        WF/PC, incipient resolution of individual stars can be expected for ellipticals
    line_4:        out to a modulus of 30.5 mag., while significant new information about the
    line_5:        retinue of globular clusters surrounding ellipticals can be learned out to a
    line_6:        modulus of 35.5 mag. A pixel-histogram technique, tested by simulations, will
    line_7:        permit the top of the H-R diagram and the top of the stellar luminosity
    line_8:        function to be characterized. The luminosity function for globular clusters in
    line_9:        ellipticals will be more completely determined and their role as distance
    line_10:       indicators more completeley developed, with possible application to improving
    line_11:       the distance to the Coma Cluster (z = 0.022) and the determination of Ho.

!
! end of abstract

general_form_proposers:

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

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        On one flank of each elliptical galaxy, long FWC exposures (~2600 seconds) will
    line_2:        be made through two wide-band filters (F555W and F785LP). One of such pair of
    line_3:        frames will span at least the range from V = 22 to 25 mag arcsec -2, and a
    line_4:        second pair of frames (in some cases) will sample the neighboring field. In
    line_5:        the special case of M32, stepped exposure times will be needed and ultraviolet
    line_6:        (F336W) exposures will be included in the sequence.
    line_8:        Cycle 9: = Exposures 9, 10, 14, 15.
    line_9:        Cycle 9: = Exposures 11-13, 16, 17, 18.
    line_12:       COMMENT FROM TF TARGET #15: I would like to recommend different off-sets for
    line_13:       Positions 1 and 2 in NGC 221 (M32). They will sample M32 at the same radii as
    line_14:       before but will be overlaid with ~ 20% less (on average) of the M31 disk
    line_15:       population. The new recommended positions are: TARGET #16 and #17.

!

  question:        6
    section:       1
    line_1:        Uninterrupted exposures are needed to maximize S/N. For all exposures
    line_2:        1000 sec, we request dark time. This is needed to minimize scattered light.
    line_3:        By dark time we mean that the telescope should be beyond the brightly lit limb
    line_4:        of the Earth in the dark half of the orbit. We do not require that the
    line_5:        telescope actually be within the Earth's shadow. See note on exposure
    line_6:        logsheet. The above guideline of 1000 sec may need revision after experience
    line_7:        in orbit.

!

  question:        13
    section:       1
    line_1:        Long WFC exposures in two broad passbands will be obtained on the flanks of
    line_2:        large elliptical galaxies (plus M32) to probe the top of the H-R diagram in the
    line_3:        nearest ones and to investigate the luminosity function of their globular
    line_4:        clusters. The latter will be used to help infer the distance to the Coma
    line_5:        Cluster, which has implications concerning Hd. The objects are NGC 3379, 3377,
    line_6:        4649, 4552, 4881, 4051 and NGC 221.

!
!end of general form text

general_form_address:

  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:           FABER
    fname:         SANDRA
    mi:            M.
    category:      CON
    inst:          UC SANTA CRUZ - LICK OBSERVATORY
    addr_1:        NATURAL SCIENCE II, BLDG. 160
    city:          SANTA CRUZ
    state:         CA
    zip:           95064
    country:       USA
    phone:         (408) 429-2944

!

  lname:           WESTPHAL
    fname:         JAMES
    mi:            A.
    title:         PROF.
    category:      PI
    inst:          CALTECH
    addr_1:        M/S 170-25
    addr_2:        DIVISION OF GEOLOGICAL
    addr_3:        & PLANETARY SCIENCES
    city:          PASADENA
    state:         CA
    zip:           91125
    country:       USA
    phone:         (818) 356-4900

!

  lname:           BAUM
    fname:         WILLIAM
    category:      CON
    inst:          LOWELL OBSERVATORY
    addr_1:        PLANETARY RESEARCH CENTER
    addr_2:        1400 WEST MARS HILL ROAD
    city:          FLAGSTAFF
    state:         AZ
    zip:           86002
    country:       USA
    phone:         (602) 774-3358

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        NGC3379
    name_2:        M105
    descr_1:       E, 303
    pos_1:         RA= 10H45M11.3S +/- 0.1S,
    pos_2:         DEC= +12D50'48" +/- 1"
    equinox:       1950
    comment_1:     NEARBY ELLIPTICAL GALAXY

!

    targnum:       2
    name_1:        NGC3379-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = -9.15S +/- 0.4S,
    pos_2:         DEC-OFF = 0" +/- 6",
    pos_3:         FROM 1
    equinox:       1950
    comment_1:     NEARBY ELLIPTICAL GALAXY

!

    targnum:       3
    name_1:        NGC3379-POS2
    descr_1:       E, 303
    pos_1:         RA-OFF = -19.94S +/- 0.4S,
    pos_2:         DEC-OFF = 0" +/- 6",
    pos_3:         FROM 1
    equinox:       1950
    comment_1:     NEARBY ELLIPTICAL GALAXY
    fluxnum_1:     1
    fluxval_1:     V = 29.5 +/- 0.5

!

    targnum:       4
    name_1:        NGC3377
    descr_1:       E, 303
    pos_1:         RA= 10H45M02.6S +/- 0.1S,
    pos_2:         DEC= +14D14'55" +/- 1"
    equinox:       1950
    comment_1:     NEARBY ELLIPTICAL GALAXY

!

    targnum:       5
    name_1:        NGC3377-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = 0S +/- 0.1S,
    pos_2:         DEC-OFF = +120" +/- 6",
    pos_3:         FROM 4
    equinox:       1950
    comment_1:     NEARBY ELLIPTICAL GALAXY
    fluxnum_1:     1
    fluxval_1:     V = 29.5 +/- 0.5

!

    targnum:       6
    name_1:        NGC4649
    descr_1:       E, 303
    pos_1:         RA= 12H41M09.0S +/- 0.1S,
    pos_2:         DEC= +11D49'28" +/- 1"
    equinox:       1950
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     VIRGO CLUSTER

!

    targnum:       7
    name_1:        NGC4649-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = +14.7S +/- 0.4S,
    pos_2:         DEC-OFF = 0" +/- 6",
    pos_3:         FROM 6
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     VIRGO CLUSTER

!

    targnum:       8
    name_1:        NGC4649-POS2
    descr_1:       E, 303
    pos_1:         RA-OFF = +25.54S +/- 0.4S,
    pos_2:         DEC-OFF = 0" +/- 6",
    pos_3:         FROM 6
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     VIRGO CLUSTER
    fluxnum_1:     1
    fluxval_1:     V = 29.5 +/- 0.5

!

    targnum:       9
    name_1:        NGC4552
    descr_1:       E, 303
    pos_1:         RA= 12H33M08.4S +/- 0.1S,
    pos_2:         DEC= +12D49'56" +/- 1"
    equinox:       1950
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     VIRGO CLUSTER

!

    targnum:       10
    name_1:        NGC4552-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = 0S +/- 0.4S,
    pos_2:         DEC-OFF = +125" +/- 6",
    pos_3:         FROM 9
    equinox:       1950
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     VIRGO CLUSTER
    fluxnum_1:     1
    fluxval_1:     V = 29.5 +/- 0.5

!

    targnum:       11
    name_1:        NGC4881
    descr_1:       E, 303
    pos_1:         RA = 12H57M33.0S +/- 0.1S,
    pos_2:         DEC = +28D30'56" +/- 1"
    equinox:       1950
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     COMA CLUSTER
    fluxnum_1:     1
    fluxval_1:     V=29.5 +/- 0.5

!

    targnum:       12
    name_1:        NGC4881-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = 0S +/- 0.4S,
    pos_2:         DEC-OFF = +50" +/- 6",
    pos_3:         FROM 11
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     COMA CLUSTER
    fluxnum_1:     1
    fluxval_1:     V=29.5 +/- 0.5

!

    targnum:       13
    name_1:        IC4051
    descr_1:       E, 303
    pos_1:         RA= 12H58M29.7S +/-0.1S,
    pos_2:         DEC= +28D16'36" +/-1"
    equinox:       1950
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     COMA CLUSTER

!

    targnum:       14
    name_1:        IC4051-POS1
    descr_1:       E, 303
    pos_1:         RA-OFF = +3.79S +/- 0.4S,
    pos_2:         DEC-OFF = 0" +/- 6",
    pos_3:         FROM 13
    comment_1:     ELLIPTICAL GALAXY IN THE
    comment_2:     COMA CLUSTER
    fluxnum_1:     1
    fluxval_1:     V = 29.5 +/- 0.5

!

    targnum:       15
    name_1:        NGC221
    name_2:        M32
    descr_1:       E, 303
    pos_1:         RA= 0H39M58.0S +/- 0.1S,
    pos_2:         DEC= +40D35'33" +/- 1"
    equinox:       1950
    comment_1:     VERY NEARBY COMPACT
    comment_2:     ELLIPTICAL GALAXY

!

    targnum:       16
    name_1:        NGC221-POS1
    descr_1:       E, 303
    pos_1:         RA= 0H40M03.6S +/- 2",
    pos_2:         DEC= 40D34'37" +/- 2"
    equinox:       1950
    comment_1:     VERY NEARBY COMPACT
    comment_2:     ELLIPTICAL GALAXY
    comment_3:     SEE G.F. 3

!

    targnum:       17
    name_1:        NGC221-POS2
    descr_1:       E, 303
    pos_1:         RA= 0H40M20.2S +/- 2",
    pos_2:         DEC= 40D38'15" +/- 2",
    equinox:       1950
    comment_1:     VERY NEARBY COMPACT
    comment_2:     ELLIPTICAL GALAXY
    comment_3:     SEE G.F. 3
    fluxnum_1:     1
    fluxval_1:     V = 26.0 +/- 0.5

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEFINE
    sequence_2:    ELLIP1
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  2200S
    priority:      #
    param_1:       CR-SPLIT=0.50,
    param_2:       PRE-FLASH=NO,
    param_3:       CR-TOLERANCE=0.0
    req_1:         SAME POS FOR 2 AS 1;
    req_2:         SAME ORIENT FOR 2 AS 1;
    req_3:         POS TARG 10,-10 / 1-2;
    req_4:         NON-INT / 1-316
    comment_1:     CYCLE 3-9 PROPOSAL VERSION
    comment_2:     3/25/92  11:05  (RML).

!

    linenum:       2.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  2500S
    priority:      #
    param_1:       CR-SPLIT=0.5,
    param_2:       PRE-FLASH=NO,
    param_3:       CR-TOLERANCE=0.0
    req_1:         SEQ 1-2 WITHIN 1D;
    comment_1:     ADJUST EXPOSURE TIMES ON
    comment_2:     LINES 1-2 AS REQUIRED FOR EACH
    comment_3:     TO FILL A SINGLE ORBIT.

!

    linenum:       3.000
    sequence_1:    DEFINE
    sequence_2:    ELLIP2
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  1000S
    priority:      #
    param_1:       CR-SPLIT=0.50,
    param_2:       PRE-FLASH=NO,
    param_3:       CR-TOLERANCE=0.0
    req_1:         SAME POS FOR 5-7 AS 3;
    req_2:         SAME ORIENT FOR 5-7 AS 3;
    req_3:         GROUP 3-7 WITHIN 1D;
    req_4:         POS TARG 10,-10 / 3-7;

!

    linenum:       5.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  1000S
    priority:      #
    param_1:       CR-SPLIT=0.5,
    param_2:       PRE-FLASH=NO,
    param_3:       CR-TOLERANCE=0.0
    comment_1:     LINES 3,5 ARE INTENDED TO FIT INTO
    comment_2:     ONE ORBIT. ADJUST TIMES +/- 20 PER
    comment_3:     CENT TO FIT, BUT KEEP TIMES EQUAL.

!

    linenum:       7.000
    sequence_1:    ^
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F336W
    num_exp:       1
    time_per_exp:  2200S
    priority:      #
    param_1:       CR-SPLIT=0.5,
    param_2:       PRE-FLASH=YES,
    param_3:       CR-TOLERANCE=0.0
    comment_1:     ADJUST EXPOSURE TIME ON
    comment_2:     LINE 7 AS REQUIRED FOR EXPOSURE
    comment_3:     TO FILL A SINGLE ORBIT.

!

    linenum:       9.000
    sequence_1:    USE ELLIP1
    targname:      NGC3379-POS1
    priority:      1
    req_1:         CYCLE 3 / 9-18

!

    linenum:       10.000
    sequence_1:    USE ELLIP1
    targname:      NGC3379-POS2
    priority:      2

!

    linenum:       11.000
    sequence_1:    USE ELLIP1
    targname:      NGC3377-POS1
    priority:      2

!

    linenum:       12.000
    sequence_1:    USE ELLIP1
    targname:      NGC4649-POS1
    priority:      1

!

    linenum:       13.000
    sequence_1:    USE ELLIP1
    targname:      NGC4649-POS2
    priority:      2

!

    linenum:       14.000
    sequence_1:    USE ELLIP1
    targname:      NGC4552-POS1
    priority:      3

!

    linenum:       15.000
    sequence_1:    USE ELLIP1
    targname:      NGC4881-POS1
    priority:      1

!

    linenum:       17.000
    sequence_1:    USE ELLIP2
    targname:      NGC221-POS1
    priority:      2

!

    linenum:       18.000
    sequence_1:    USE ELLIP2
    targname:      NGC221-POS2
    priority:      2

!

    linenum:       316.000
    sequence_1:    USE ELLIP1
    targname:      IC4051-POS1
    priority:      9
    req_1:         CYCLE 4;
    req_2:         COND IF TAC OK

!
! end of exposure logsheet

! No scan data records found