6095( 11) - 10/16/95 11:51 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6095 Version: 11 Check-in Date: ********** 1.Proposal Title: Hot Stellar Populations in Globular Cluster Cores ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Stellar Populations GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: S. George Djorgovski California Institute of Technology CoI: R. Michael Rich Columbia University N CoI: Craig Sosin University of California, Berkeley N CoI: Roy Gal California Institute of Technology N CoI: Ivan King University of California, Berkeley N CoI: Giampaolo Piotto Universita di Padova N CoI: James McCarthy California Institute of Technology N CoI: Georges Meylan European Southern Observatory N CoI: James Liebert University of Arizona N CoI: Alvio Renzini Universita di Bologna N CoI: E. Sterl Phinney California Institute of Technology N CoI: David Chernoff Cornell University N CoI: Ben Dorman University of Virginia N CoI: Reinaldo de Carvalho California Institute of Technology N CoI: Michael Pahre California Institute of Technology N ------------------------------------------------------------------------------------ 6. Abstract The goal of this program is to use both the resolving power and the far-UV imaging capability of HST to study the nature of hot stellar populations and their radial gradients in the cores of globular clusters. We propose to survey dense globular cluster cores in the far-UV, B, and V passbands using WFPC2. We will discover all UV-bright stars at or above the turnoff, producing for the first time a nearly complete census of these populations. Magnitudes in the far-UV, B and V passbands permit an estimate of temperature, bolometric luminosity, and placement in the color -magnitude diagram. Numerous ground-based studies show that population gradients exist in concentrated globular cluster cores, and IUE spectra and some early HST data show they are also seen in the far-UV. Some centrally concentrated hot stellar population must be present, e.g., faint BHB stars, blue stragglers, stripped red giant cores, merged stars, or some new, as yet unknown type of object. These phenomena may be relevant for the origins of x- ray sources and millisecond pulsars in globular clusters. The data we propose to obtain would provide essential input for theoretical models. We should also be capable of detecting stars in brief UV- bright phases of evolution, as short as 10^5 - 10^6 yr. The frequency of UV-bright stars per Lsun\ can be used to place limits on their evolutionary lifetimes, thus constraining their origin. The normal far-UV phases of stellar evolution may help explain the UV-rising flux in elliptical galaxies. ------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 2] Observations Description ------------------------ We plan to reach past the turnoff in B and V for all of our targets. An additional image will be obtained in F218W. This filter has a relatively small red leak, 3 times the throughput of the Woods filter, and no vignetting. We plan to work at the 14 e^-/ADU gain channel to minimize saturation of bright stars. For the few clusters in the CVZ, we plan to image also using the Woods filter. These images will help us to check the temperatures and bolometric luminosities obtained using F218W, F439W, and F555W. Images must be obtained in a single position and orientation because the color information and clear identification is crucial. Our primary goal is the study of clusters with dense and post -collapse cores. However, a study of far-UV stellar evolution uncomplicated by core dynamics is also of great importance and we have therefore included a number of clusters where we would expect dynamical processes in the core to be less important. At the same time, they serve as a good comparison sample for the more concentrated ones. We will reach well below the turnoff in all Galactic globular clusters. The far -UV exposure will have a limiting magnitude of m(2500)=22 with S/N=3. This corresponds to V~ 18.5, typical for turnoff F stars in most globular clusters. Our limit for flat spectrum stars is B<23, and 1-2 mag fainter than this for UV- bright objects. Therefore, any UV-bright star discovered will also be detected in the B band. The PC chip will be centered on the cluster core, for maximum resolution there. The surrounding WFC chips will cover enough area to clearly establish the presence or absence of population gradients. The surrounding chips will also sample more total luminosity, thus increasing the chance we will discover stars in brief evolutionary phases. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: *Prof. George Djorgovski*(or Prof. Ivan King)*Astronomy Dept.*601 Campbell Hall*University of California*Berkeley, CA 94720 Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC104 STELLAR CLUSTER RA=00H 24M 5.2S +/- 1", DEC=-72D 2000 V=4.02 04' 51" +/- 1" B-V=0.88 E(B-V)=0.04 SURF(V) = 14.30 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 2 NGC362 STELLAR CLUSTER RA=01H 03M 14.3S +/- 1", DEC=- 2000 V=6.84 70D 50' 54" +/- 1" B-V=0.78 E(B-V)=0.04 SURF(V) = 14.67 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 3 NGC1851 STELLAR CLUSTER RA=05H 14M 6.3S +/- 1", DEC=-40D 2000 V=7.10 02' 50" +/- 1" B-V=0.76 E(B-V)=0.02 SURF(V) = 14.11 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 4 NGC1904 STELLAR CLUSTER RA=05H 24M 10.6S +/- 1", DEC=- 2000 V=7.70 24D 31' 27" +/- 1" B-V=0.64 E(B-V)=0.01 SURF(V) = 16.15 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 5 NGC2808 STELLAR CLUSTER RA=09H 12M 2.6S +/- 1", DEC=-64D 2000 V=6.24 51' 47" +/- 1" B-V=0.90 E(B-V)=0.24 SURF(V) = 14.43 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 6 NGC5927 STELLAR CLUSTER RA=15H 28M 0.5S +/- 1", DEC=-50D 2000 V=8.00 40' 22" +/- 1" B-V=1.30 E(B-V)=0.46 SURF(V) = 15.48 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 7 NGC6388 STELLAR CLUSTER RA=17H 36M 17.0S +/- 1", DEC=- 2000 V=6.80 44D 44' 06" +/- 1" B-V=1.18 E(B-V)=0.34 SURF(V) = 13.45 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 8 NGC6441 STELLAR CLUSTER RA=17H 50M 12.9S +/- 1", DEC=- 2000 V=7.15 37D 03' 04" +/- 1" B-V=1.27 E(B-V)=0.42 SURF(V) = 13.53 6095( 11) - 10/16/95 11:51 - [ 4] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 9 NGC6522 STELLAR CLUSTER RA=18H 03M 34.1S +/- 1", DEC=- 2000 V=9.89 30D 02' 02" +/- 1" B-V=1.21 E(B-V)=0.50 SURF(V) = 14.20 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 10 NGC6652 STELLAR CLUSTER RA=18H 35M 45.7S +/- 1", DEC=- 2000 V=8.54 32D 59' 25" +/- 1" B-V=0.94 E(B-V)=0.10 SURF(V) = 15.72 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 20 NGC288 STELLAR CLUSTER RA=00H 52M 47.5S +/- 1S, DEC=- 2000 V=8.1 26D 35' 24.0" +/- 1" Comments: Alternate target Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 21 NGC5904 STELLAR CLUSTER RA=15H 18M 33.8S +/- 1S, DEC=02D 2000 V=5.7 04' 58.0" +/- 1" Comments: Alternate target Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 22 NGC6121 STELLAR CLUSTER RA=16H 23M 35.5S +/- 1S, DEC=- 2000 V=5.4 26D 31' 31.0" +/- 1" Comments: Alternate target Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 23 NGC6752 STELLAR CLUSTER RA=19H 10M 51.8S +/- 1S, DEC=- 2000 V=5.3 59D 58' 55.0" +/- 1" Comments: Alternate target Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0 0.0 0 6095( 11) - 10/16/95 11:51 - [ 5] Visit: 01 Visit Requirements: CVZ On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC104 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 1S -GAIN=15 Comments: NGC104 short V ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC104 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 7S -GAIN=15 Comments: NGC104 long V ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC104 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 7S -GAIN=15 Comments: NGC104 short B ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC104 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 50S -GAIN=15 Comments: NGC104 long B ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC104 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 4 800S -GAIN=15 Comments: NGC104 UV exposures should fill out orbit ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 6] Visit: 02 Visit Requirements: CVZ On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 21 NGC362 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 3S -GAIN=15 Comments: NGC362 short V ------------------------------------------------------------------------------------------------------------------------------------ 22 NGC362 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 18S -GAIN=15 Comments: NGC362 long V ------------------------------------------------------------------------------------------------------------------------------------ 23 NGC362 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 18S -GAIN=15 Comments: NGC362 short B ------------------------------------------------------------------------------------------------------------------------------------ 24 NGC362 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC362 long B ------------------------------------------------------------------------------------------------------------------------------------ 25 NGC362 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 5 700S -GAIN=15 Comments: NGC362 UV exposures should fill out orbit ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 7] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 31 NGC1851 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 6S -GAIN=15 Comments: NGC1851 short V ------------------------------------------------------------------------------------------------------------------------------------ 32 NGC1851 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 40S -GAIN=15 Comments: NGC1851 long V ------------------------------------------------------------------------------------------------------------------------------------ 33 NGC1851 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 40S -GAIN=15 Comments: NGC1851 short B ------------------------------------------------------------------------------------------------------------------------------------ 34 NGC1851 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC1851 long B ------------------------------------------------------------------------------------------------------------------------------------ 35 NGC1851 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 600S EXPAND -GAIN=15 Comments: NGC1851 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 8] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 41 NGC1904 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 7S -GAIN=15 Comments: NGC1904 short V ------------------------------------------------------------------------------------------------------------------------------------ 42 NGC1904 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 40S -GAIN=15 Comments: NGC1904 long V ------------------------------------------------------------------------------------------------------------------------------------ 43 NGC1904 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 40S -GAIN=15 Comments: NGC1904 short B ------------------------------------------------------------------------------------------------------------------------------------ 44 NGC1904 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC1904 long B ------------------------------------------------------------------------------------------------------------------------------------ 45 NGC1904 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC1904 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 9] Visit: 05 Visit Requirements: CVZ On Hold Comments: Additional Comments: Continuous Viewing Zone Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 51 NGC2808 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 7S -GAIN=15 Comments: NGC2808 short V ------------------------------------------------------------------------------------------------------------------------------------ 52 NGC2808 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC2808 long V ------------------------------------------------------------------------------------------------------------------------------------ 53 NGC2808 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC2808 short B ------------------------------------------------------------------------------------------------------------------------------------ 54 NGC2808 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 230S -GAIN=15 Comments: NGC2808 long B ------------------------------------------------------------------------------------------------------------------------------------ 55 NGC2808 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 1 1600S -GAIN=15 Comments: NGC2808 first UV ------------------------------------------------------------------------------------------------------------------------------------ 56 NGC2808 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 1 1700S -GAIN=15 Comments: NGC2808 second UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 10] Visit: 06 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 61 NGC5927 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 10S -GAIN=15 Comments: NGC5927 short V ------------------------------------------------------------------------------------------------------------------------------------ 62 NGC5927 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC5927 long V ------------------------------------------------------------------------------------------------------------------------------------ 63 NGC5927 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC5927 short B ------------------------------------------------------------------------------------------------------------------------------------ 64 NGC5927 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC5927 long B ------------------------------------------------------------------------------------------------------------------------------------ 65 NGC5927 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 600S EXPAND -GAIN=15 Comments: NGC5927 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 11] Visit: 07 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 71 NGC6388 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 12S -GAIN=15 Comments: NGC6388 short V ------------------------------------------------------------------------------------------------------------------------------------ 72 NGC6388 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6388 long V ------------------------------------------------------------------------------------------------------------------------------------ 73 NGC6388 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6388 short B ------------------------------------------------------------------------------------------------------------------------------------ 74 NGC6388 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC6388 long B ------------------------------------------------------------------------------------------------------------------------------------ 75 NGC6388 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC6388 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 12] Visit: 08 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 81 NGC6441 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 14S -GAIN=15 Comments: NGC6441 short V ------------------------------------------------------------------------------------------------------------------------------------ 82 NGC6441 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6441 long V ------------------------------------------------------------------------------------------------------------------------------------ 83 NGC6441 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6441 short B ------------------------------------------------------------------------------------------------------------------------------------ 84 NGC6441 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC6441 long B ------------------------------------------------------------------------------------------------------------------------------------ 85 NGC6441 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC6441 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 13] Visit: 09 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 91 NGC6522 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 8S -GAIN=15 Comments: NGC6522 short V ------------------------------------------------------------------------------------------------------------------------------------ 92 NGC6522 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6522 long V ------------------------------------------------------------------------------------------------------------------------------------ 93 NGC6522 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6522 short B ------------------------------------------------------------------------------------------------------------------------------------ 94 NGC6522 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC6522 long B ------------------------------------------------------------------------------------------------------------------------------------ 95 NGC6522 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC6522 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 14] Visit: 10 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 101 NGC6652 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 10S -GAIN=15 Comments: NGC6652 short V ------------------------------------------------------------------------------------------------------------------------------------ 102 NGC6652 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6652 long V ------------------------------------------------------------------------------------------------------------------------------------ 103 NGC6652 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6652 short B ------------------------------------------------------------------------------------------------------------------------------------ 104 NGC6652 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC6652 long B ------------------------------------------------------------------------------------------------------------------------------------ 105 NGC6652 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC6652 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 15] Visit: 11 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 101 NGC6652 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 10S -GAIN=15 Comments: NGC6652 short V ------------------------------------------------------------------------------------------------------------------------------------ 102 NGC6652 WFPC2 IMAGE PC1-FIX F555W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6652 long V ------------------------------------------------------------------------------------------------------------------------------------ 103 NGC6652 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 1 50S -GAIN=15 Comments: NGC6652 short B ------------------------------------------------------------------------------------------------------------------------------------ 104 NGC6652 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO ATD 2 160S -GAIN=15 Comments: NGC6652 long B ------------------------------------------------------------------------------------------------------------------------------------ 105 NGC6652 WFPC2 IMAGE PC1-FIX F218W CR-SPLIT=NO ATD 2 500S EXPAND -GAIN=15 Comments: NGC6652 UV ------------------------------------------------------------------------------------------------------------------------------------ 6095( 11) - 10/16/95 11:51 - [ 16] Summary Form for Proposal 6095 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ATD-GAIN=15 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Stellar Populations ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CVZ EXPAND ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W F439W F218W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC104 NGC362 NGC1851 NGC1904 NGC2808 NGC5927 NGC6388 NGC6441 NGC6522 NGC6652 ------------------------------------------------------------------------------------------------------------------------------------