!  File:  4666C.PROP
!  Database:  PEPDB
!  Date:  22-FEB-1994:21:45:23

coverpage:

  title_1:         THE JET OF CENTAURUS A AND ITS HOST GALAXY-CYC3 MEDIUM
    sci_cat:       QUASARS & AGN
    sci_subcat:    JETS
    proposal_for:  GO
    pi_fname:      ETHAN
    pi_mi:         J.
    pi_lname:      SCHREIER
    pi_inst:       STSCI
    hours_pri:     17.71
    hours_par:     12.67
    num_pri:       6
    num_par:       9
    wf_pc:         Y
    foc:           Y
    funds_amount:  109557
    funds_length:  12
    funds_date:    JUN-93
    off_fname:     HERVEY
    off_mi:        S.
    off_lname:     STOCKMAN
    off_title:     DEP. DIRECTOR
    off_inst:      STSCI
    off_addr_1:    3700 SAN MARTIN DRIVE
    off_city:      BALTIMORE
    off_state:     MD
    off_zip:       21218
    off_country:   USA
    off_phone:     (301)338-4720
! end of coverpage

abstract:

    line_1:        The primary purpose of this proposal is to study the jet in Cen A /
    line_2:        NGC 5128.  The jet has been studied in x-rays with Einstein and ROSAT,
    line_3:        and has been shown to have sub-arcsecond structure in the radio. Ground-
    line_4:        based optical observations of the inner jet region have been inconclusive.
    line_5:        We propose to observe the inner jet in the UV using the FOC.  We will also
    line_6:        use the WFC with its polarizers to observe the same region, to determine
    line_7:        intrinsic polarization and to help study those structures which lie
    line_8:        behind the dust lane.  We will measure the spectrum of the jet and its
    line_9:        sub-structure as a function of position, from radio through optical and UV
    line_10:       to the x-ray, determine the existence of any spectral break, and, in
    line_11:       general, check the correctness of the synchrotron hypothesis.  We may also
    line_12:       be able to determine the location of electron acceleration regions.  If
    line_13:       0.1 arcsec optical structure exists, we will also establish the basis for
    line_14:       proper motion and synchrotron decay lifetime studies.  We will also use
    line_15:       the FOC to study a bright knot of x-ray emission seen in a ridge parallel
    line_16:       to but outside the dust lane, pursuing the hypothesis that emission is
    line_17:       coming from massive binaries in a region of star formation.  During the
    line_18:       primary observations, we propose parallel observations in the halo, to help
    line_19:       interpret the diffuse x-ray emission, identify sources observed with ROSAT,
    line_20:       and extend the mapping of globular clusters in NGC 5128.

!
! end of abstract

general_form_proposers:

  lname:           SCHREIER
    fname:         ETHAN
    title:         PI
    mi:            J.
    inst:          STSCI
    country:       USA

!

  lname:           FORD
    fname:         HOLLAND
    inst:          STSCI
    country:       USA

!

  lname:           MACCHETTO
    fname:         F.
    mi:            D.
    inst:          STSCI
    country:       USA
    esa:           Y

!

  lname:           SPARKS
    fname:         WILLIAM
    inst:          STSCI
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        We are using the FOC/f96 camera to observe 4 points in the jet of CenA,
    line_2:        and a hotspot in an x-ray ridge.  Two exposures are done at each of the
    line_3:        five FOC pointings, one with F320W and one with F175W.  In addition, we
    line_4:        are using the WFC with polarizers and the F675W filter to observe the
    line_5:        jet, with a short WFC exposure without the polarizers for reference.
    line_6:        During the FOC observations, we are using the WFC to do parallel
    line_7:        observations in the halo, to search for globular clusters. The parallel
    line_8:        WFC exposures are done with two filters -- F785LP and F555W -- at each
    line_9:        pointing, to obtain rough colors.  During the prime WFC observations,
    line_10:       we also do parallel FOC observations, using F320W and F175W.
    line_11:       We have planned the observations so that the time at each FOC pointing
    line_12:       is split equally between each of the two filters. For convenience, we
    line_13:       have split the parallel WFC exposure time between the two filters at the
    line_14:       same boundaries.  This is not essential.
    line_15:       One hour FOC exposures are planned with each filter at each of the two
    line_16:       inner jet positions, 40 minute FOC exposures with each filter at the two
    line_17:       outer jet positions and 30 minutes each at the ridge hotspot. We use
    line_18:       five 20 minute exposures (total 100 minutes) with each of the three
    line_19:       polarizers with the WFC, and two 10 minute exposures without the
    line_20:       polarizers. As a result, we do not want the default CR-split for these.
    line_21:       However, the parallel WFC exposures do assume the default CR-split.

!

  question:        5
    section:       1
    line_1:        We require the 4 WFC oservations of the jet to be performed together
    line_2:        (e.g. GROUP NO GAP) to ensure no significant change in orientation of
    line_3:        the field.
    line_4:        We also note that 3 targets (CENA-NUC, CENA-KNOTA, CENA-RIDGE) use the
    line_5:        same instrument/configuration (FOC/f96) and are all within one arcminute,
    line_6:        as are 2 other targets (CENA-KNOTES, CENA-KNOTEH), allowing savings on
    line_7:        guide star acquisition times.

!

  question:        6
    section:       1
    line_1:        There are no special FOC calibration requirements.

!

  question:        7
    section:       1
    line_1:        There are no special data analysis requirements.

!

  question:        9
    section:       1
    line_1:        There is no previous HST data on CenA.

!
!end of general form text

general_form_address:

  lname:           Schreier
    fname:         Ethan
    mi:            J.
    category:      PI
    inst:          STScI
    addr_1:        3700 San Martin Drive
    city:          Baltimore
    state:         Md
    zip:           21218
    country:       USA
    phone:         (410) 338-4740
    telex:         (410) 338-2519

!
! end of general_form_address records

fixed_targets:

    targnum:       1
    name_1:        CENA-KNOTA
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         XI-OFF = 13" +/- 1",
    pos_2:         ETA-OFF = 10" +/- 1",
    pos_3:         FROM 6
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       2
    name_1:        CENA-KNOTES
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         XI-OFF = 111" +/- 1",
    pos_2:         ETA-OFF = 70" +/- 1",
    pos_3:         FROM 6
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       3
    name_1:        CENA-KNOTEH
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         XI-OFF = 93" +/- 1",
    pos_2:         ETA-OFF = 62" +/- 1",
    pos_3:         FROM 6
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       4
    name_1:        CENA-RIDGE
    name_2:        NGC5128
    descr_1:       E,315,909,915
    pos_1:         XI-OFF = -7" +/- 1",
    pos_2:         ETA-OFF = -52" +/- 1",
    pos_3:         FROM 6
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       5
    name_1:        CENA-KNOTAB
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         XI-OFF = 20" +/- 1",
    pos_2:         ETA-OFF = 12" +/- 1",
    pos_3:         FROM 6
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       6
    name_1:        CENA-NUC
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.60S +/- 0.01S,
    pos_2:         DEC = -42D 45' 34.5" +/- 0.1"
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       7
    name_1:        CENA-PAR1
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       8
    name_1:        CENA-PAR2
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       9
    name_1:        CENA-PAR3
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       10
    name_1:        CENA-PAR4
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       11
    name_1:        CENA-PAR5
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       12
    name_1:        CENA-PAR6
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       13
    name_1:        CENA-PAR7
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       14
    name_1:        CENA-PAR8
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!

    targnum:       15
    name_1:        CENA-PAR9
    name_2:        NGC5128
    descr_1:       E,315,907
    pos_1:         RA = 13H 22M 31.6S,
    pos_2:         DEC = -42D 45' 34.5",
    pos_3:         REGION,
    pos_4:         R = 15'
    equinox:       1950
    fluxnum_1:     1
    fluxval_1:     SURF(V)=21+/-1

!
! end of fixed targets

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    sequence_1:    DEF FOCSQ1
    targname:      #
    config:        FOC/96
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    F320W
    num_exp:       1
    time_per_exp:  1M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3

!

    linenum:       2.000
    sequence_1:    DEF FOCSQ2
    targname:      #
    config:        FOC/96
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    F175W
    num_exp:       1
    time_per_exp:  1M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3

!

    linenum:       3.000
    sequence_1:    DEF WFCSQ1
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F555W
    num_exp:       1
    time_per_exp:  10M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3
    comment_1:     USED FOR PARALLEL WFC EXPOSURES

!

    linenum:       4.000
    sequence_1:    DEF WFCSQ2
    targname:      #
    config:        WFC
    opmode:        IMAGE
    aperture:      WFALL
    sp_element:    F785LP
    num_exp:       1
    time_per_exp:  10M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3
    comment_1:     USED FOR PARALLEL WFC EXPOSURES

!

    linenum:       5.000
    sequence_1:    DEF FOCSQP
    targname:      #
    config:        FOC/96
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    F320W
    num_exp:       1
    time_per_exp:  1M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3
    comment_1:     USED FOR PARALLEL FOC EXPOSURES

!

    linenum:       6.000
    sequence_1:    DEF FOCSQP
    targname:      #
    config:        FOC/96
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    F175W
    num_exp:       1
    time_per_exp:  1M
    s_to_n:        10
    priority:      1
    req_1:         CYCLE 3
    comment_1:     USED FOR PARALLEL FOC EXPOSURES

!

    linenum:       10.000
    sequence_1:    USE FOCSQ1
    targname:      CENA-NUC
    time_per_exp:  X60

!

    linenum:       10.100
    sequence_1:    USE FOCSQ2
    targname:      CENA-NUC
    time_per_exp:  X60

!

    linenum:       11.000
    sequence_1:    USE FOCSQ1
    targname:      CENA-KNOTA
    time_per_exp:  X60

!

    linenum:       11.100
    sequence_1:    USE FOCSQ2
    targname:      CENA-KNOTA
    time_per_exp:  X60

!

    linenum:       12.000
    sequence_1:    USE FOCSQ1
    targname:      CENA-KNOTES
    time_per_exp:  X30

!

    linenum:       12.100
    sequence_1:    USE FOCSQ2
    targname:      CENA-KNOTES
    time_per_exp:  X30

!

    linenum:       13.000
    sequence_1:    USE FOCSQ1
    targname:      CENA-KNOTEH
    time_per_exp:  X30

!

    linenum:       13.100
    sequence_1:    USE FOCSQ2
    targname:      CENA-KNOTEH
    time_per_exp:  X30

!

    linenum:       20.000
    sequence_1:    USE WFCSQ1
    targname:      CENA-PAR1
    time_per_exp:  X6
    req_1:         PAR
    comment_1:     PARALLEL WITH 10

!

    linenum:       20.100
    sequence_1:    USE WFCSQ2
    targname:      CENA-PAR1
    time_per_exp:  X6
    req_1:         PAR
    comment_1:     PARALLEL WITH 10.1

!

    linenum:       21.000
    sequence_1:    USE WFCSQ1
    targname:      CENA-PAR2
    time_per_exp:  X6
    req_1:         PAR
    comment_1:     PARALLEL WITH 11.0

!

    linenum:       21.100
    sequence_1:    USE WFCSQ2
    targname:      CENA-PAR2
    time_per_exp:  X6
    req_1:         PAR
    comment_1:     PARALLEL WITH 11.1

!

    linenum:       22.000
    sequence_1:    USE WFCSQ1
    targname:      CENA-PAR3
    time_per_exp:  X3
    req_1:         PAR
    comment_1:     PARALLEL WITH 12.0

!

    linenum:       22.100
    sequence_1:    USE WFCSQ2
    targname:      CENA-PAR3
    time_per_exp:  X3
    req_1:         PAR
    comment_1:     PARALLEL WITH 12.1

!

    linenum:       23.000
    sequence_1:    USE WFCSQ1
    targname:      CENA-PAR4
    time_per_exp:  X3
    req_1:         PAR
    comment_1:     PARALLEL WITH 13.0

!

    linenum:       23.100
    sequence_1:    USE WFCSQ2
    targname:      CENA-PAR4
    time_per_exp:  X3
    req_1:         PAR
    comment_1:     PARALLEL WITH 13.1

!

    linenum:       100.000
    targname:      CENA-KNOTAB
    config:        WFC
    opmode:        IMAGE
    aperture:      WF2-FIX
    sp_element:    F785LP
    num_exp:       2
    time_per_exp:  350S
    s_to_n:        10
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         CYCLE 3;
    req_2:         GROUP 100.0-104.0 NO GAP

!

    linenum:       101.000
    targname:      CENA-KNOTAB
    config:        WFC
    opmode:        IMAGE
    aperture:      WF2-FIX
    sp_element:    F675W
    num_exp:       1
    time_per_exp:  350S
    s_to_n:        10
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         CYCLE 3;
    req_2:         GROUP 100.0-104.0 NO GAP

!

    linenum:       102.000
    targname:      CENA-KNOTAB
    config:        WFC
    opmode:        IMAGE
    aperture:      WF2-FIX
    sp_element:    F675W,POL0
    num_exp:       5
    time_per_exp:  20M
    s_to_n:        10
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         CYCLE 3;

!

    linenum:       103.000
    targname:      CENA-KNOTAB
    config:        WFC
    opmode:        IMAGE
    aperture:      WF2-FIX
    sp_element:    F675W,POL60
    num_exp:       5
    time_per_exp:  20M
    s_to_n:        10
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         CYCLE 3

!

    linenum:       104.000
    targname:      CENA-KNOTAB
    config:        WFC
    opmode:        IMAGE
    aperture:      WF2-FIX
    sp_element:    F675W,POL120
    num_exp:       5
    time_per_exp:  20M
    s_to_n:        10
    priority:      1
    param_1:       CR-SPLIT=NO
    req_1:         CYCLE 3

!

    linenum:       200.000
    sequence_1:    USE FOCSQP
    targname:      CENA-PAR6
    time_per_exp:  X6
    req_1:         PAR
    comment_1:     PARALLEL WITH 100

!

    linenum:       201.000
    sequence_1:    USE FOCSQP
    targname:      CENA-PAR6
    time_per_exp:  X3
    req_1:         PAR
    comment_1:     PARALLEL WITH 101

!

    linenum:       202.000
    sequence_1:    USE FOCSQP
    targname:      CENA-PAR7
    time_per_exp:  X50
    req_1:         PAR
    comment_1:     PARALLEL WITH 102

!

    linenum:       203.000
    sequence_1:    USE FOCSQP
    targname:      CENA-PAR8
    time_per_exp:  X50
    req_1:         PAR
    comment_1:     PARALLEL WITH 103

!

    linenum:       204.000
    sequence_1:    USE FOCSQP
    targname:      CENA-PAR9
    time_per_exp:  X50
    req_1:         PAR
    comment_1:     PARALLEL WITH 104

!
! end of exposure logsheet

! No scan data records found