!  File:  5443P.PROP
!  Database:  PEPDB
!  Date:  21-JAN-1994:18:45:38

coverpage:

  title_1:         A STUDY OF GALACTIC GAS-PHASE ABUNDANCE GRADIENTS:
    title_2:       CYCLE 4 HIGH
    sci_cat:       INTERSTELLAR MEDIUM
    sci_subcat:    ABSORPTION LINES
    proposal_for:  GO
    pi_fname:      JASON
    pi_mi:         A.
    pi_lname:      CARDELLI
    pi_inst:       UNIVERSITY OF WISCONSIN
    pi_country:    USA
    hours_pri:     13.10
    num_pri:       4
    hrs:           Y
    funds_length:  24
    off_fname:     ROBERT
    off_mi:        W.
    off_lname:     ERICKSON
    off_title:     ADMINISTRATOR
    off_inst:      3884
    off_addr_1:    750 UNIVERSITY AVENUE
    off_city:      MADISON
    off_state:     WI
    off_zip:       53706
    off_country:   USA
    off_phone:     608-262-3822
! end of coverpage

abstract:

    line_1:        The exploration of interstellar gas-phase abundances in the Galaxy,
    line_2:        particularly along long pathlengths sampling relatively low density
    line_3:        gas, provides vital information on the process of nucleosynthetic
    line_4:        enrichment and the degree to which the gas is mixed in both the radial
    line_5:        and vertical directions.  Of particular interest to us here is the
    line_6:        study of abundance variations, specifically abundance gradients, in the
    line_7:        gas in the galactic disk and low halo.  We propose to obtain GHRS high
    line_8:        resolution (3.5 km/s) Ech-B observations of absorption line profiles
    line_9:        of several elements arising from two distinct nucleosynthetic origins.
    line_10:       We will use 4 sightlines in the general direction of the galactic
    line_11:       center, each sampling relatively low density intercloud gas where the
    line_12:       degree of depletion of heavy elements onto dust is relatively low.
    line_13:       These sight lines, which sample both sides of the galactic center,
    line_14:       take maximum advantage of the velocity lever-arm provided by galactic
    line_15:       rotation.  By allowing us to relate absorption as a function of LSR
    line_16:       velocity to galactocentric radius, we will be able to produce
    line_17:       abundance gradient data down to galactocentric radii as small as
    line_18:       3.5 kpc.

!
! end of abstract

general_form_proposers:

  lname:           CARDELLI
    fname:         JASON
    title:         PI
    mi:            A.
    inst:          UNIVERSITY OF WISCONSIN
    country:       USA

!

  lname:           MASSA
    fname:         DERCK
    inst:          APPLIED RESEARCH CORPORATION
    country:       USA
    esa:           N

!

  lname:           MEYER
    fname:         DAVID
    mi:            M.
    inst:          NORTHWESTERN UNIVERSITY
    country:       USA
    esa:           N

!

  lname:           SEMBACH
    fname:         KENNETH
    mi:            R.
    inst:          MIT
    country:       USA
    esa:           N

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        We propose to observed 4 stars at two three principal wavelengths,
    line_2:        1808, 2062, and 2374 A  using grating ECH-B.   All observations will be
    line_3:        made using the LSA, to take advantage of the maximum throughput, and a
    line_4:        sampling strategy of two substeps per diode.  The slight (20%) reduction
    line_5:        in resolution in the post-COSTAR LSA relative to the SSA will not impact
    line_6:        our analysis.  The requested observations will allow us to obtain S/N =
    line_7:        30 (per substep) data for Si II 1808.0, Zn II 2062.7, Cr II 2062.2,
    line_8:        2066.2, and Fe II l2374.5.  [As an added bonus, the single-setup
    line_9:        coverage afforded by Ech-B will allow us to also obtain data for the
    line_10:       stronger Fe II line at 2382.8 free-of-charge.  This stronger line will
    line_11:       be useful in assessing very weak low column density absorption.]  We
    line_12:       shall also employ the FP-SPLIT=4 procedure inorder to assess and remove
    line_13:       potentially problematic fixed pattern noise features.

!
!end of general form text

general_form_address:

  lname:           CARDELLI
    fname:         JASON
    mi:            A.
    category:      PI
    inst:          University of Wisconsin
    addr_1:        DEPARTMENT OF ASTRONOMY
    addr_2:        475 N. CHARTER STREET
    city:          MADISON
    state:         WI
    zip:           53706
    country:       USA
    phone:         608-262-7921

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        HD148422
    descr_1:       A,113
    pos_1:         RA = 16H 30M 59.96S +/- 0.1S,
    pos_2:         DEC = -56D 29' 42.6" +/- 0.5",
    pos_3:         PLATE-ID=06AJ
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=8.60, TYPE=B1 IA,
    fluxval_2:     E(B-V)=0.28

!

    targnum:       2
    name_1:        HD151990
    descr_1:       A,104
    pos_1:         RA = 16H 53M 28.51S +/- 0.1S,
    pos_2:         DEC = -52D 37' 52.7" +/- 0.5",
    pos_3:         PLATE-ID=00M0
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=9.46, TYPE=O9 IV,
    fluxval_2:     E(B-V)=0.39

!

    targnum:       3
    name_1:        HD177989
    descr_1:       A,113
    pos_1:         RA = 19H 07M 37.77S +/- 0.1S,
    pos_2:         DEC = -18D 43' 36.7" +/- 0.1",
    pos_3:         PLATE-ID=068E
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=9.33, TYPE=B0 III,
    fluxval_2:     E(B-V)=0.25

!

    targnum:       4
    name_1:        HD178487
    descr_1:       A,113
    pos_1:         RA = 19H 09M 14.84S +/- 0.1S,
    pos_2:         DEC = -10D 13' 04.5" +/- 0.5",
    pos_3:         PLATE-ID=06AU
    equinox:       2000
    pm_or_par:     N
    fluxnum_1:     1
    fluxval_1:     V=8.66, TYPE=B0 IA,
    fluxval_2:     E(B-V)=0.40

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      HD148422
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  75S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=5,
    param_2:       BRIGHT=RETURN,
    req_1:         ONBOARD ACQ FOR 1.1;
    req_2:         CYCLE 4 / 1-1.4
    comment_1:     STEP-TIME=3S

!

    linenum:       1.100
    targname:      HD148422
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  5.1M
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 1.2
    comment_1:     STEP-TIME=3S

!

    linenum:       1.200
    targname:      HD148422
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    1808
    num_exp:       3
    time_per_exp:  16.32M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       1.300
    targname:      HD148422
    config:        HRS
    opmode:        ACCUM
    aperture:      0.25
    sp_element:    ECH-B
    wavelength:    2063
    num_exp:       2
    time_per_exp:  15.36M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       1.400
    targname:      HD148422
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2376
    num_exp:       1
    time_per_exp:  16.32M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       2.000
    targname:      HD151990
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=5,
    param_2:       BRIGHT=RETURN,
    req_1:         ONBOARD ACQ FOR 2.1;
    req_2:         CYCLE 4 / 2-2.4
    comment_1:     STEP-TIME=4S

!

    linenum:       2.100
    targname:      HD151990
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  6.8M
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 2.2
    comment_1:     STEP-TIME=4S

!

    linenum:       2.200
    targname:      HD151990
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    1808
    num_exp:       4
    time_per_exp:  21.12M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       2.300
    targname:      HD151990
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2063
    num_exp:       3
    time_per_exp:  20.16M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       2.400
    targname:      HD151990
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2376
    num_exp:       2
    time_per_exp:  18.24M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       3.000
    targname:      HD177989
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  75S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=5,
    param_2:       BRIGHT=RETURN,
    req_1:         ONBOARD ACQ FOR 3.1;
    req_2:         CYCLE 4 / 3-3.4
    comment_1:     STEP-TIME=3S

!

    linenum:       3.100
    targname:      HD177989
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  5.1M
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 3.2
    comment_1:     STEP-TIME=3S

!

    linenum:       3.200
    targname:      HD177989
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    1808
    num_exp:       2
    time_per_exp:  21.12M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       3.300
    targname:      HD177989
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2063
    num_exp:       1
    time_per_exp:  22.08M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       3.400
    targname:      HD177989
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2376
    num_exp:       1
    time_per_exp:  14.40M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       4.000
    targname:      HD178487
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=5,
    param_2:       BRIGHT=RETURN,
    req_1:         ONBOARD ACQ FOR 4.1;
    req_2:         CYCLE 4 / 4-4.4
    comment_1:     STEP-TIME=4S

!

    linenum:       4.100
    targname:      HD178487
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  6.8M
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 4.2
    comment_1:     STEP-TIME=4S

!

    linenum:       4.200
    targname:      HD178487
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    1808
    num_exp:       3
    time_per_exp:  22.08M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       4.300
    targname:      HD178487
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2063
    num_exp:       2
    time_per_exp:  22.08M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

    linenum:       4.400
    targname:      HD178487
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2376
    num_exp:       1
    time_per_exp:  22.08M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,


    linenum:       202.000
    targname:      HD151990
    config:        HRS
    opmode:        ACQ
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  100S
    fluxnum_1:     1
    priority:      1
    param_1:       SEARCH-SIZE=5,
    param_2:       BRIGHT=RETURN,
    req_1:         ONBOARD ACQ FOR 202.1;
    req_2:         CYCLE 4 / 202-202.4
    comment_1:     STEP-TIME=4S

!

    linenum:       202.100
    targname:      HD151990
    config:        HRS
    opmode:        ACQ/PEAKUP
    aperture:      2.0
    sp_element:    MIRROR-A2
    num_exp:       1
    time_per_exp:  6.8M
    fluxnum_1:     1
    priority:      1
    req_1:         ONBOARD ACQ FOR 202.4
    comment_1:     STEP-TIME=4S

    linenum:       202.400
    targname:      HD151990
    config:        HRS
    opmode:        ACCUM
    aperture:      2.0
    sp_element:    ECH-B
    wavelength:    2376
    num_exp:       2
    time_per_exp:  18.24M
    s_to_n:        30
    fluxnum_1:     1
    priority:      1
    param_1:       STEP-PATT=6,
    param_2:       FP-SPLIT=STD,

!

!
! end of exposure logsheet

! No scan data records found