12008( 4) - 27-Jan-2010 13:55:45 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12008 Version: 4 Check-in Time: 27-Jan-2010 13:55:45 STScI Edit Number: 2 Title Primordial formation of close binaries in globular clusters with low density cores ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Albert Kong National Tsing Hua University CoI: Prof. Walter H. G. Lewin Massachusetts Institute of Technology N CoI: Prof. Scott F. Anderson University of Washington N CoI: Dr. Cees G. Bassa Space Research Organization Netherlands N CoI: Prof. Frank Verbunt Universiteit Utrecht, Sterrekundig N Instituut CoI: Dr. David E. Pooley University of Wisconsin - Madison N CoI: Mr. Shi-Hao Lan National Tsing Hau University N CoI: Ms. Ting-Ni Lu National Tsing Hau University N ------------------------------------------------------------------------------------ Abstract The primordial binary population is a key input parameter for any realistic model of dense star cluster dynamics. However, the number of primordial binaries and its direct implications for the formation rate of close binaries remain poorly understood. Theoretical calculations show that cataclysmic variables can be formed directly from primordial binaries in or near the core of low core density globular clusters. We propose to use Chandra/HST to study low density core globular clusters systematically and to test the prediction that low-luminosity X-ray sources can be formed from primordial binaries in the cluster core. This project will complement our successful Chandra/HST program to study the dynamical formation of X-ray sources in high core density globular clusters. ------------------------------------------------------------------------------------ Observations Description ------------------------ The objective of these observations is to search for optical counterparts of globular cluster X-ray sources discovered with Chandra. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12008( 4) - 27-Jan-2010 13:55:45 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-6362 STELLAR CLUSTER, RA=17H31M54.8700S +/- 0.1", J2000 V = 8.86 GLOBULAR CLUSTER DEC=-67D02'52.30" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-6535 STELLAR CLUSTER, RA=18H03M50.6900S +/- 0.1", J2000 V = 11.35 GLOBULAR CLUSTER DEC=-00D17'48.90" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 3 ESO-390-6 STELLAR CLUSTER, RA=16H28M40.1000S +/- 0.1", J2000 V = 12.0 GLOBULAR CLUSTER DEC=-35D21'13.00" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 12008( 4) - 27-Jan-2010 13:55:45 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-MOS-DITH-LINE WFC3-UVIS-MOS-DITH-LINE Pattern_Purpose MOSAIC DITHER Number_Of_Points 3 2 Point_Spacing 2.4 0.119 Line_Spacing Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 85.754 33.606 Angle_Between_Sides Center_Pattern YES NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 3.011 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.28 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 12008( 4) - 27-Jan-2010 13:55:45 - [ 4] Visit: 01 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 NGC-6362 WFC3/UVI ACCUM UVIS F336W CR-SPLIT=NO 1 3145 S PATTERN 1 1 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 1 1 none none 1 450.0 S S NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 1 2 none none 1 450.0 S S NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 2 1 none none 1 450.0 S S NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 2 2 none none 1 450.0 S S NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 3 1 none none 1 450.0 S S NGC-6362 1 WFC3/UVI ACCUM UVIS F336W 3 2 none none 1 368.0 S S 12008( 4) - 27-Jan-2010 13:55:45 - [ 5] Visit: 02 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 NGC-6362 ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 1516 S PATTERN 2 1-2 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-6362 ACS/WFC ACCUM WFC F625W CR-SPLIT=NO 1 300 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-6362 1 ACS/WFC ACCUM WFC F658N 1 none none none 1 750.0 S NGC-6362 1 ACS/WFC ACCUM WFC F658N 2 none none none 1 766.0 S NGC-6362 2 ACS/WFC ACCUM WFC F625W 1 none none none 1 145.0 S NGC-6362 2 ACS/WFC ACCUM WFC F625W 2 none none none 1 140.0 S 12008( 4) - 27-Jan-2010 13:55:45 - [ 6] Visit: 03 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 NGC-6535 WFC3/UVI ACCUM UVIS F336W CR-SPLIT=NO 1 2769 S PATTERN 1 1 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 1 1 none none 1 400.0 S S NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 1 2 none none 1 400.0 S S NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 2 1 none none 1 400.0 S S NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 2 2 none none 1 400.0 S S NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 3 1 none none 1 400.0 S S NGC-6535 1 WFC3/UVI ACCUM UVIS F336W 3 2 none none 1 253.0 S S 12008( 4) - 27-Jan-2010 13:55:45 - [ 7] Visit: 04 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 NGC-6535 ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 1188 S PATTERN 2 1-2 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-6535 ACS/WFC ACCUM WFC F625W CR-SPLIT=NO 1 250 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-6535 1 ACS/WFC ACCUM WFC F658N 1 none none none 1 588.0 S NGC-6535 1 ACS/WFC ACCUM WFC F658N 2 none none none 1 600.0 S NGC-6535 2 ACS/WFC ACCUM WFC F625W 1 none none none 1 148.0 S NGC-6535 2 ACS/WFC ACCUM WFC F625W 2 none none none 1 100.0 S 12008( 4) - 27-Jan-2010 13:55:45 - [ 8] Visit: 05 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 ESO-390-6 WFC3/UVI ACCUM UVIS F336W CR-SPLIT=NO 1 2841 S PATTERN 1 1 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 1 1 none none 1 200.0 S S ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 1 2 none none 1 200.0 S S ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 2 1 none none 1 200.0 S S ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 2 2 none none 1 150.0 S S ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 3 1 none none 1 120.0 S S ESO-390-6 1 WFC3/UVI ACCUM UVIS F336W 3 2 none none 1 100.0 S S 12008( 4) - 27-Jan-2010 13:55:45 - [ 9] Visit: 06 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 ESO-390-6 ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 1212 S PATTERN 2 1-2 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 ESO-390-6 ACS/WFC ACCUM WFC F625W CR-SPLIT=NO 1 300 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ ESO-390-6 1 ACS/WFC ACCUM WFC F658N 1 none none none 1 600.0 S ESO-390-6 1 ACS/WFC ACCUM WFC F658N 2 none none none 1 612.0 S ESO-390-6 2 ACS/WFC ACCUM WFC F625W 1 none none none 1 150.0 S ESO-390-6 2 ACS/WFC ACCUM WFC F625W 2 none none none 1 141.0 S 12008( 4) - 27-Jan-2010 13:55:45 - [ 10] Summary Form for Proposal 12008 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS, WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1, PATTERN 2 1-2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F336W, F625W, F658N ------------------------------------------------------------------------------------------------------------------------------------ Target Names ESO-390-6, NGC-6362, NGC-6535 ------------------------------------------------------------------------------------------------------------------------------------