!  +====================+
!  | PED OUTPUT PRODUCT |
!  +====================+
!
!  /spectre/data1/aroman/proposals/6892.prop
!  Generated by PREPROCESSOR, version 6.4a
!  Date: Mon Aug 12 15:16:43 EDT 1996

Proposal_Information
              Title: GLOBULAR CLUSTER CORE STRUCTURE AND DYNAMICS (FOS 36) - Part 2
  Proposal_Category: AUG/FOS
Scientific_Category: STELLAR POPULATIONS
              Cycle: 4


Investigators

            PI_Name: RALPH BOHLIN
     PI_Institution: SPACE TELESCOPE SCIENCE INSTITUTE



Abstract:
Obtain data on the stellar populations in the central cores of globular
clusters. Clusters with and without central unresolved cusps, and with and
without central X-ray sources will be observed. Spectra will be obtained at
the center of the UV brightness, and at a distance within about one core
radius. We might expect these spectra to differ; massive objects formed in
collisions may produce unexpected spectral features, as well as relatively
intense UV radiation in the central core. WFPC2 imaging data for NGC 1851
to be shared with GO program 6095 (Djorgovski et al.)


Questions


    Observing_Description:


  Real_Time_Justification:


Calibration_Justification:


      Additional_Comments:
This program completes the observations begun in program 5696 by replacing the
second visit of that program.


Fixed_Targets

  Target_Number: 2
    Target_Name: NGC1851-OFFSET
Alternate_Names: 
    Description: STAR,K III-I,
       Position: RA=5H 14M 7.027S +/- 0.010S,DEC=-40D 2' 31.73" +/- 0.01",PLATE-ID=00AN
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                V = 13.3+/-0.2
                B = 14.0 +/- 0.2
       Comments: POSITION UPDATED FROM WFPC2

  Target_Number: 3
    Target_Name: NGC1851-STAR
Alternate_Names: 
    Description: UNIDENTIFIED,ULTRAVIOLET EMITTER,X-RAY EMITTER,
       Position: RA-OFF=-0.597S+/- 0.01S,DEC-OFF=-6.66"+/- 0.1",FROM 2
        Equinox: J2000
        RV_or_Z: 
          RA_PM: 0.0
         Dec_PM: 0.0
          Epoch: 
Annual_Parallax: 0.0
           Flux: 
                B-V = 0.0+/-150.0e-2
                B = 20.5+/-0.5
       Comments: POSITION AND FLUXES UPDATED
FROM WFPC2 IMAGES


Solar_System_Targets


Generic_Targets


Scan_Data


Visits

      Visit_Number: 02
Visit_Requirements: 
  On_Hold_Comments: 
    Visit_Comments: 

     Exposure_Number: 10
         Target_Name: NGC1851-OFFSET
              Config: FOS/BL
              Opmode: ACQ/PEAK
            Aperture: 4.3
          Sp_Element: G400H
          Wavelength: 
 Optional_Parameters: SCAN-STEP-Y=1.23,SEARCH-SIZE-Y=3,SEARCH-SIZE-X=1
Number_of_Iterations: 1
   Time_Per_Exposure: 2.5 S
Special_Requirements: 
                ONBOARD ACQ FOR 20
            Comments: ACQUIRE THE OFFSET STAR.
EXPOSURE TIME AND
POSITION UPDATED BASED ON
WFPC2.

     Exposure_Number: 20
         Target_Name: NGC1851-OFFSET
              Config: FOS/BL
              Opmode: ACQ/PEAK
            Aperture: 1.0-PAIR-A
          Sp_Element: G400H
          Wavelength: 
 Optional_Parameters: SCAN-STEP-Y=0.61,SCAN-STEP-X=0.61,SEARCH-SIZE-Y=2,SEARCH-SIZE-X=6
Number_of_Iterations: 1
   Time_Per_Exposure: 2.5 S
Special_Requirements: 
                ONBOARD ACQ FOR 30
            Comments: 

     Exposure_Number: 30
         Target_Name: NGC1851-OFFSET
              Config: FOS/BL
              Opmode: ACQ/PEAK
            Aperture: 0.5-PAIR-A
          Sp_Element: G400H
          Wavelength: 
 Optional_Parameters: SCAN-STEP-Y=0.29,SCAN-STEP-X=0.29,SEARCH-SIZE-Y=3,SEARCH-SIZE-X=3
Number_of_Iterations: 1
   Time_Per_Exposure: 3 S
Special_Requirements: 
                ONBOARD ACQ FOR 60
            Comments: 

     Exposure_Number: 60
         Target_Name: NGC1851-OFFSET
              Config: FOS/BL
              Opmode: ACQ/PEAK
            Aperture: 0.25-PAIR-A
          Sp_Element: G400H
          Wavelength: 
 Optional_Parameters: SCAN-STEP-Y=0.11,SCAN-STEP-X=0.11,SEARCH-SIZE-Y=4,SEARCH-SIZE-X=4
Number_of_Iterations: 1
   Time_Per_Exposure: 4 S
Special_Requirements: 
                ONBOARD ACQ FOR 70
            Comments: 

     Exposure_Number: 70
         Target_Name: NGC1851-STAR
              Config: FOS/BL
              Opmode: ACCUM
            Aperture: 0.5-PAIR-A
          Sp_Element: G160L
          Wavelength: 
 Optional_Parameters: STEP-PATT=SINGLE
Number_of_Iterations: 1
   Time_Per_Exposure: 3600 S
Special_Requirements: 
            Comments: BLIND OFFSET TO TARGET

Data_Distribution         ! Defaults indicated; change if desired

         Medium: 8MM
Blocking_Factor: 10
        Ship_To: PI_Address
       Ship_Via: UPS
Recipient_Email: 

! Let us know what you think of this template and software!
! Please send a list of your likes and dislikes to your Program Coordinator