10928( 8) - 08/17/07 10:06 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10928 Version: 8 Check-in Time: 17-Aug-2007 14:05:39 STScI Edit Number: 2 Title Calibrating Cosmological Chronometers: White Dwarf Masses ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 15 ------------------------------------------------------------------------------------ Investigators Contact? PI: Mr. John P. Subasavage Georgia State University Research Foundation CoI: Dr. Hektor Monteiro Georgia State University Research N Foundation CoI: Dr. Wei-Chun Jao Georgia State University Research N Foundation CoI: Dr. Todd J. Henry Georgia State University Research N Foundation CoI: Dr. Edmund Nelan Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract We propose to use HST/FGS1R to determine White Dwarf (WD) masses. The unmatched resolving power of HST/FGS1R will be utilized to follow up four selected WD binary pairs. This high precision obtained with HST/FGS1R simply cannot be equaled by any ground based technique. This proposed effort complements that done by CoI Nelan in which a sample of WDs is being observed with HST/FGS1R. This proposal will dramatically increase the number of WDs for which dynamical mass measurements are possible, enabling a better calibration of the WD mass-radius relation, cooling curves, initial to final mass relations, and ultimately giving important clues to the star formation history of our Galaxy and the age of its disk as well as in other galaxies. (This project is part of Subasavage's PhD thesis work at Georgia State University.) ------------------------------------------------------------------------------------ 10928( 8) - 08/17/07 10:06 - [ 2] Observations Description ------------------------ We will use FGS1r in its high angular resolution TRANSFER mode to observe our targets. Each single-orbit visit will contain two exposures, one with a long scan path, one with a short scan path. This will provide sensitivity for both wide binaries as well as close systems. The wide-band F583W filter will be used to maximize photon throuput. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10928( 8) - 08/17/07 10:06 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 WD0121-429 STAR, DA RA=01H24M3.9800S +/- 0.1", DEC=- J2000 V = 14.83 42D40'38.50" +/- 0.1" B-V=0.49 Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.01936 0.5218 0.0 2 WD2007-219 STAR, DA RA=20H10M17.5100S +/- 0.1", J2000 V = 14.39 DEC=-21D46'45.60" +/- 0.1" B-V=0.2 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.00674 -0.317 0.0 3 WD2040-392 STAR, DC, DA RA=20H43M49.2100S +/- 0.1", J2000 V = 13.74+/-0.2 DEC=-39D03'18.00" +/- 0.1" B-V=0.11 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 -0.000713000 -0.3399 0.0 4 WD1202-232 STAR, DA RA=12H05M26.6700S +/- 0.1", J2000 V = 12.8+/-0.2 DEC=-23D33'12.00" +/- 0.1" B-V=0.25 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.00454 0.2422 0.0 6 WD2248+293 STAR, DA RA=22H51M23.0200S +/- 0.1", J2000 V = 15.55+/-0.2 DEC=+29D39'44.40" +/- 0.1" B = 16.22 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.00955 0.133 0.0 7 WD1242-105 STAR, DA RA=12H44M52.6600S +/- 0.1", J2000 V = 15.0+/-0.2 DEC=-10D51'8.90" +/- 0.1" B = 15.05 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 -0.023 -0.078 0.0 8 WD1237-230 STAR, DA RA=12H40M24.1500S +/- 0.1", J2000 V = 15.5+/-0.3 DEC=-23D17'43.80" +/- 0.1" B = 16.5 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 -0.056 -0.802 0.0 9 WD0311-649 STAR, DA RA=03H12M25.6800S +/- 0.1", J2000 V = 13.27+/-0.1 DEC=-64D44'10.80" +/- 0.1" Reference Frame: ICRS 10928( 8) - 08/17/07 10:06 - [ 4] TARGET LIST 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 -0.00896 0.1056 0.0 10928( 8) - 08/17/07 10:06 - [ 5] Visit: 11 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 01-JUL-2006:00:00:00 AND 30-AUG- 2006:00:00:00 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 WD0121-429 FGS TRANS 1 F583W SCANS=5 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD0121-429 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1380 S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD0121-429 1 FGS TRANS 1 F583W none none none none 1 N/A WD0121-429 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 6] Visit: 12 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70% 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 WD2248+293 FGS TRANS 1 F583W SCANS=5 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD2248+293 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1335 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD2248+293 1 FGS TRANS 1 F583W none none none none 1 N/A WD2248+293 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 7] Visit: 21 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 01-JUL-2006:00:00:00 AND 06-AUG- 2006:00:00:00 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 WD2007-219 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD2007-219 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1370 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD2007-219 1 FGS TRANS 1 F583W none none none none 1 N/A WD2007-219 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 8] Visit: 22 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70% 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 WD1242-105 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD1242-105 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1360 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD1242-105 1 FGS TRANS 1 F583W none none none none 1 N/A WD1242-105 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 9] Visit: 31 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 15-JUL-2006:00:00:00 AND 16-AUG- 2006:00:00:00 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 WD2040-392 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD2040-392 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1380 S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD2040-392 1 FGS TRANS 1 F583W none none none none 1 N/A WD2040-392 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 10] Visit: 32 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70% 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 WD0311-649 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD0311-649 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1450 S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD0311-649 1 FGS TRANS 1 F583W none none none none 1 N/A WD0311-649 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 11] Visit: 41 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 01-DEC-2006:00:00:00 AND 16-JAN- 2007:00:00:00 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 WD1202-232 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD1202-232 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1370 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD1202-232 1 FGS TRANS 1 F583W none none none none 1 N/A WD1202-232 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 12] Visit: 42 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70% 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 WD1237-230 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD1237-230 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1340 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD1237-230 1 FGS TRANS 1 F583W none none none none 1 N/A WD1237-230 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 13] Visit: 51 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 01-JUL-2006:00:00:00 AND 30-AUG- 2006:00:00:00 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 WD0121-429 FGS TRANS 1 F583W SCANS=5 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD0121-429 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1380 S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD0121-429 1 FGS TRANS 1 F583W none none none none 1 N/A WD0121-429 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 14] Visit: 61 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70%; BETWEEN 01-DEC-2006:00:00:00 AND 16-JAN- 2007:00:00:00 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 WD1202-232 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD1202-232 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1370 S SAME POS AS 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD1202-232 1 FGS TRANS 1 F583W none none none none 1 N/A WD1202-232 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 15] Visit: 92 Visit Priority: Visit Requirements: PCS MODE FINE; SCHED 70% On Hold Comments: Additional Comments: Repeat copy of failed visit 32. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 WD0311-649 FGS TRANS 1 F583W SCANS=5,STEP-SIZE=1 1 375 S SEQ 1-2 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 WD0311-649 FGS TRANS 1 F583W SCANS=32,STEP-SIZE=0.5 1 1450 S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ WD0311-649 1 FGS TRANS 1 F583W none none none none 1 N/A WD0311-649 2 FGS TRANS 1 F583W none none none none 1 N/A 10928( 8) - 08/17/07 10:06 - [ 16] Summary Form for Proposal 10928 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations FGS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes TRANS ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCANS=5 SCANS=32 STEP-SIZE=0.5 STEP-SIZE=1 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE FINE; SCHED 70%; BETWEEN 01-JUL-2006 00 00 00 AND 30-AUG-2006 00 00 00; SEQ 1-2 NON-INT; SAME POS AS 1; BETWEEN 01-JUL-2006 00 00 00 AND 06-AUG-2006 00 00 00; BETWEEN 15-JUL-2006 00 00 00 AND 16-AUG-2006 00 00 00; BETWEEN 01-DEC-2006 00 00 00 AND 16-JAN-2007 00 00 00; BETWEEN 01-JUL-2006 00 00 00 AND 30-AUG-2006 00 00 00; BETWEEN 01-DEC-2006 00 00 00 AND 16-JAN-2007 00 00 00; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F583W ------------------------------------------------------------------------------------------------------------------------------------ Target Names WD0121-429 WD2248+293 WD2007-219 WD1242-105 WD2040-392 WD0311-649 WD1202-232 WD1237-230 ------------------------------------------------------------------------------------------------------------------------------------