10760( 13) - 05/04/07 06:58 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10760 Version: 13 Check-in Time: 04-May-2007 10:57:27 STScI Edit Number: 2 Title Black Hole X-ray Novae in M31 ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 14 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Michael R. Garcia Smithsonian Institution Astrophysical Observatory CoI: Dr. Benjamin Williams Smithsonian Institution Astrophysical Y Observatory CoI: Dr. Stephen S. Murray Smithsonian Institution Astrophysical N Observatory CoI: Dr. Francis Primini Smithsonian Institution Astrophysical N Observatory ------------------------------------------------------------------------------------ Abstract We have been carring out a Chandra (GO+GTO) and HST (GO) program to find Black Hole X-ray Nova (BHXN) and their optical counterparts in M31 for several years. To date we have found >2 dozen BHXN and 3 HST optical counterparts for these BHXN. Our results suggest a rather high ratio of BH to neutron star (NS) binaries, or a high duty cycle for the BHXN. We propose to continue this program, with the goal of determining the orbital period distribution and duty cycles of these BHXN. Current results yield 3 orbital periods and 2 upper limits. Our proposed observations will ~double the total number of periods and therefore yield sufficient numbers to make a first approximation of the orbital period distribution. The orbital period distribution is the fundamental observable parameter any binary stellar evolution models must match, and the duty cycle is very poorly known but directly influences the binary lifetime. M31 is the only galaxy in which this extra-galactic study of BHXN is feasible. ------------------------------------------------------------------------------------ 10760( 13) - 05/04/07 06:58 - [ 2] Observations Description ------------------------ We will use the ACS camera to obtain images of active Black Hole X-ray Novae (BHXNe) in M31. These BHXNe will be identified on Chandra-ACIS observations obtained approximately 1 month prior to each HST observation. We will therefore be splitting up our 20 HST orbits into 10 visits (two orbits per visit). The current plan will use the first 5 observations to detect the optical counterparts of 5 BHXNe and the last 5 observations to revisit those 5 BHXN counterparts to ensure that they were optical transients. This plan may be slightly altered over the course of the program depending on when and where the BHXNe are detected. Real Time Justification ----------------------- These observations will be scheduled during the full CXO AO7 program, which runs during HST C14 and C15. Our first 5 two-orbit visits must be performed at intervals of one per month (or a longer interval) in order to find a counterpart for a new BHXN with each observation. Our preliminary studies indicate that about one new BHXN activates each month. We will obtain the 5 HST exposures during the available observing windows in February, June, July, August and October 2006. The CXO exposures would preceed each of these by 1 month. We have scheduled all the other 5 HST observations required to confirm the optical counterparts to the BHXNe during the first available observing window for M31 during HST C15 (January 2007). The science exposures and visibility period must be determined accurately and updated using suitable software for Cycle 15. Calibration Justification ------------------------- Additional Comments ------------------- As we will not know the exact location of our target until a Chandra observation is completed, we cannot provide final coordinates for our objects until about 3 weeks prior to each observation. As a result, we have currently supplied the coordinates of the nucleus of M31 as a hold position, to be corrected to the final position when we detect the BHXN. These detections will be within 1 degree of the M31 nucleus. ------------------------------------------------------------------------------------ 10760( 13) - 05/04/07 06:58 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-BH1 UNIDENTIFIED, OPTICAL RA=00H42M52.4000S +/- 1", J2000 V = 25.0+/-5.0 EMITTER, ULTRAVIOLET DEC=+41D16'49.20" +/- 1" EMITTER, X-RAY EMITTER Coordinate Source: Other_Source: Chandra Observation 2 M31-BH2 UNIDENTIFIED, OPTICAL RA=00H42M33.8790S +/- 1", J2000 V = 25.0+/-5.0 EMITTER, ULTRAVIOLET DEC=+41D23'31.11" +/- 1" EMITTER, X-RAY EMITTER Coordinate Source: Other_Source: Chandra Observation 3 M31-BH3 UNIDENTIFIED, OPTICAL RA=00H42M51.1710S +/- 1", J2000 V = 25.0+/-5.0 EMITTER, ULTRAVIOLET DEC=+41D19'17.92" +/- 1" EMITTER, X-RAY EMITTER Coordinate Source: Other_Source: Chandra Observation 4 M31-BH4 UNIDENTIFIED, X-RAY RA=00H42M16.0590S +/- 1", J2000 V = 25.0+/-5.0 EMITTER, ULTRAVIOLET DEC=+41D19'26.07" +/- 1" EMITTER, OPTICAL EMITTER Coordinate Source: Other_Source: Chandra observation 5 M31-BH5 UNIDENTIFIED, X-RAY RA=00H42M17.3310S +/- 1", J2000 V = 25.0+/-5.0 EMITTER, ULTRAVIOLET DEC=+41D15'36.84" +/- 1" EMITTER, OPTICAL EMITTER Coordinate Source: Other_Source: Chandra Observation 10760( 13) - 05/04/07 06:58 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.265 Line_Spacing 0.187 Coordinate_Frame POS-TARG Pattern_Orient 20.67 Angle_Between_Sides 69.05 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFPC2-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.559017 Line_Spacing 0.559017 Coordinate_Frame POS-TARG Pattern_Orient 26.56505 Angle_Between_Sides 143.130102 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 10760( 13) - 05/04/07 06:58 - [ 5] Visit: 01 Visit Priority: Visit Requirements: BETWEEN 08-FEB-2006:12:00:00 AND 14-FEB-2006:11:59:00 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 M31-BH1 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 545 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH1 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 6] Visit: 02 Visit Priority: Visit Requirements: BETWEEN 05-JUL-2006:00:00:00 AND 17-JUL-2006:00:00:00 On Hold Comments: Additional Comments: It is our preference to have the visit execute as early as possible in the window. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-BH2 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 545 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH2 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 7] Visit: 03 Visit Priority: Visit Requirements: BETWEEN 09-JUL-2006:12:00:00 AND 16-JUL-2006:11:59:00 On Hold Comments: Additional Comments: It is our preference to have the visit execute as early as possible in its window. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-BH3 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 544 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH3 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 8] Visit: 04 Visit Priority: Visit Requirements: BETWEEN 27-AUG-2006:12:00:00 AND 03-SEP-2006:11:59:00 On Hold Comments: Additional Comments: Please schedule this visits as early as possible in its window. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-BH4 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 543 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH4 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH4 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 9] Visit: 05 Visit Priority: Visit Requirements: BETWEEN 23-OCT-2006:12:00:00 AND 25-OCT-2006:11:59:00 On Hold Comments: Additional Comments: Please schedule as late as possible in the window. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-BH5 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 537 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH5 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH5 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 10] Visit: 06 Visit Priority: Visit Requirements: BETWEEN 07-JAN-2007:12:00:00 AND 13-JAN-2007:11:59:00 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 M31-BH1 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 584 S PATTERN 1 1 Comments: Check schedubility of this orbit. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH1 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH1 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 11] Visit: 07 Visit Priority: Visit Requirements: BETWEEN 07-JAN-2007:12:00:00 AND 13-JAN-2007:11:59:00 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 M31-BH2 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 584 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH2 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH2 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 12] Visit: 08 Visit Priority: Visit Requirements: BETWEEN 07-JAN-2007:12:00:00 AND 13-JAN-2007:11:59:00 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 M31-BH3 ACS/WFC ACCUM WFC F435W GAIN=2,CR-SPLIT=NO 2 584 S PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH3 1 ACS/WFC ACCUM WFC F435W 1 none 1 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 1 none 2 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 2 none 1 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 2 none 2 none 1 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 3 none 1 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 3 none 2 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 4 none 1 none 2 N/A M31-BH3 1 ACS/WFC ACCUM WFC F435W 4 none 2 none 2 N/A 10760( 13) - 05/04/07 06:58 - [ 13] Visit: 09 Visit Priority: Visit Requirements: BETWEEN 28-JUN-2007:00:00:00 AND 13-JUL-2007:11:59:00 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 M31-BH4 WFPC2 IMAGE PC1-FIX F439W CR-SPLIT=NO,ATD-GAIN=15 3 700 S PATTERN 2 1 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 1 none 1 none 1 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 1 none 2 none 1 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 1 none 3 none 1 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 2 none 1 none 2 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 2 none 2 none 2 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 2 none 3 none 2 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 3 none 1 none 3 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 3 none 2 none 3 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 3 none 3 none 3 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 4 none 1 none 4 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 4 none 2 none 4 700.0 S M31-BH4 1 WFPC2 IMAGE PC1-FIX F439W 4 none 3 none 4 700.0 S 10760( 13) - 05/04/07 06:58 - [ 14] Summary Form for Proposal 10760 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC PC1-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters GAIN=2 CR-SPLIT=NO ATD-GAIN=15 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 08-FEB-2006 12 00 00 AND 14-FEB-2006 11 59 00; PATTERN 1 1; BETWEEN 05-JUL-2006 00 00 00 AND 17-JUL-2006 00 00 00; BETWEEN 09-JUL-2006 12 00 00 AND 16-JUL-2006 11 59 00; BETWEEN 27-AUG-2006 12 00 00 AND 03-SEP-2006 11 59 00; BETWEEN 23-OCT-2006 12 00 00 AND 25-OCT-2006 11 59 00; BETWEEN 07-JAN-2007 12 00 00 AND 13-JAN-2007 11 59 00; BETWEEN 07-JAN-2007 12 00 00 AND 13-JAN-2007 11 59 00; BETWEEN 07-JAN-2007 12 00 00 AND 13-JAN-2007 11 59 00; BETWEEN 28-JUN-2007 00 00 00 AND 13-JUL-2007 11 59 00; PATTERN 2 1; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F435W F439W ------------------------------------------------------------------------------------------------------------------------------------ Target Names M31-BH1 M31-BH2 M31-BH3 M31-BH4 M31-BH5 ------------------------------------------------------------------------------------------------------------------------------------