11308( 2) - 06/19/07 06:38 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11308 Version: 2 Check-in Time: 19-Jun-2007 10:37:38 STScI Edit Number: 0 Title Planetary Nebulae, Globular Clusters, and Binary Mergers ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO/DD 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Orsola De Marco American Museum of Natural History CoI: Dr. George Jacoby National Optical Astronomy Observatories, N AURA CoI: Dr. Howard E. Bond Space Telescope Science Institute Y CoI: Dr. J. Patrick Harrington University of Maryland N ------------------------------------------------------------------------------------ Abstract Four planetary nebulae (PNe) have been found within 130 of the 150 globular clusters (GCs) of our Galaxy. This might not seem like many, but stellar evolution predicts that the old populations of these clusters should contain no PN at all Our request to use DD time for this proposal was encouraged by the Telescope Time Review Board after they denied an instrument change request for our cancelled ACS/WFC program. The denial resulted from a substantial change in observing strategy which was deemed too complex not to be reviewd by a TAC. ------------------------------------------------------------------------------------ 11308( 2) - 06/19/07 06:38 - [ 2] Observations Description ------------------------ We will observe the central star of the planetary nebula JaFu 1 in the globular cluster Pal 6 using the WFPC2. For photometry of the central star, we will obtain 2x160 sec dithered exposures in F555W and F814W. To minimize CTE effects, we are placing the star at the WFALL position in WF3. The single orbit will be filled out with 2x500 sec in F656N, in order to obtain a narrow-band image of the surrounding planetary nebula in the light of H-alpha. The PN is small enough (about 6"x8") that the entire nebula will fall within WF3 when the central star is placed at the WFALL position. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11308( 2) - 06/19/07 06:38 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 JAFU1 STAR, PLANETARY NEBULA RA=17H43M57.3800S +/- 1", DEC=- J2000 V = 21.5+/-1.0 CENTRAL STAR, 26D11'54.00" +/- 1" [OIII]=5.8e-15; Ha=2.4e-14 POPULATION II, POST-AGB (cgs/sq.arcsec; observed) STAR Reference Frame: ICRS 11308( 2) - 06/19/07 06:38 - [ 4] Visit: 01 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 JAFU1 WFPC2 IMAGE WFALL-FIX F555W ATD-GAIN=7,CR-SPLIT=NO 1 160 S ------------------------------------------------------------------------------------------------------------------------------------ 2 JAFU1 WFPC2 IMAGE WFALL-FIX F814W ATD-GAIN=7,CR-SPLIT=NO 1 160 S ------------------------------------------------------------------------------------------------------------------------------------ 3 JAFU1 WFPC2 IMAGE WFALL-FIX F656N ATD-GAIN=7,CR-SPLIT=NO 1 500 S ------------------------------------------------------------------------------------------------------------------------------------ 4 JAFU1 WFPC2 IMAGE WFALL-FIX F555W ATD-GAIN=7,CR-SPLIT=NO 1 160 S POS TARG -0.24895, -0.24895 ------------------------------------------------------------------------------------------------------------------------------------ 5 JAFU1 WFPC2 IMAGE WFALL-FIX F814W ATD-GAIN=7,CR-SPLIT=NO 1 160 S POS TARG -0.24895, -0.24895 ------------------------------------------------------------------------------------------------------------------------------------ 6 JAFU1 WFPC2 IMAGE WFALL-FIX F656N ATD-GAIN=7,CR-SPLIT=NO 1 500 S POS TARG -0.24895, -0.24895 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ JAFU1 1 WFPC2 IMAGE WFALL-FI F555W none none none none 1 N/A X JAFU1 2 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X JAFU1 3 WFPC2 IMAGE WFALL-FI F656N none none none none 1 N/A X JAFU1 4 WFPC2 IMAGE WFALL-FI F555W none none none none 1 N/A X JAFU1 5 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X JAFU1 6 WFPC2 IMAGE WFALL-FI F656N none none none none 1 N/A X 11308( 2) - 06/19/07 06:38 - [ 5] Summary Form for Proposal 11308 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFALL-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ATD-GAIN=7 CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements POS TARG -0.24895,-0.24895; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W F814W F656N ------------------------------------------------------------------------------------------------------------------------------------ Target Names JAFU1 ------------------------------------------------------------------------------------------------------------------------------------