10814( 4) - 08/29/06 12:48 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10814 Version: 4 Check-in Time: 29-Aug-2006 16:47:40 STScI Edit Number: 0 Title The Masses for ultraluminous X-ray sources ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 15 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Joel N. Bregman University of Michigan CoI: Dr. Jifeng Liu Harvard University N CoI: Dr. Jimmy A. Irwin University of Michigan N ------------------------------------------------------------------------------------ Abstract Ultraluminous X-ray sources are non-nuclear sources in normal disk galaxies that are either stellar mass black holes that are super-Eddington emitters, or 1E3-1E4 Msolar black holes emitting normally. We can distinguish between these models by obtaining constraints for the mass of the primary, which can be accomplished through UV objective prism spectra. This strategy begins with the optical identification of the secondary and identification of its spectral type in order to determine its mass and the Roche Lobe radius. Secondly, we need to determine whether an accretion disk is present and if its high ionization UV line luminosities point to a stellar mass black hole or a more massive object. Finally, if the black hole is 1E3-1E4 Msolar, the orbital velocity of the secondary is so large that a Doppler shift will be detectable, even at the modest resolution of the prism. ------------------------------------------------------------------------------------ 10814( 4) - 08/29/06 12:48 - [ 2] Observations Description ------------------------ A ACS prism observation is being made of four fields, each of which lie in a nearby galaxy. While there are multiple objects in each field, there are certain orientations where an uncontaminated spectrum will be produced for our target, so each target has position angle restrictions. The spectral element is the PR130L being used with the SBC on the ACS. Two observations, each most of an orbit in length are scheduled for each target. A pair of short observations is also scheduled, as these are needed for wavelength calibration. The pair of 5 minute images are being taken with the F125LP filter on the SBC/ACS, as this is the closest match in spectral properties to the PR130L. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10814( 4) - 08/29/06 12:48 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5204-ULX EXT-STAR, ACCRETION RA=13H29M38.6000S +/- 0.1", J2000 V = 21.9+/-0.2 DISK, EMISSION LINE DEC=+58D25'5.60" +/- 0.1" STAR, LMXB, MAIN SEQUENCE O, X-RAY Reference Frame: ICRS 2 HOLMII-ULX EXT-STAR, X-RAY RA=08H19M29.0000S +/- 0.1", J2000 V = 22.0+/-0.2 TRANSIENT DEC=+70D42'19.30" +/- 0.1" Reference Frame: ICRS 3 NGC1313-ULX EXT-STAR, X-RAY RA=03H18M22.3000S +/- 0.1", J2000 V = 23.5+/-0.4 TRANSIENT DEC=-66D36'3.80" +/- 0.1" Reference Frame: ICRS 4 NGC3031-ULX EXT-STAR, X-RAY RA=09H55M33.0000S +/- 0.1", J2000 V = 23.5+/-0.4 TRANSIENT DEC=+69D00'33.40" +/- 0.1" Reference Frame: ICRS 10814( 4) - 08/29/06 12:48 - [ 4] Visit: 01 Visit Priority: Visit Requirements: ORIENT 279.0D TO 332.0 D; ORIENT 99.0D TO 152.0 D; ORIENT 52.0D TO 73.0 D; ORIENT 232.0D TO 253.0 D 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 NGC5204-ULX ACS/SBC ACCUM SBC F165LP 1 600 S see below ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5204-ULX ACS/SBC ACCUM SBC PR130L 1 2080 S see below ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5204-ULX ACS/SBC ACCUM SBC PR130L 1 2800 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC5204-ULX 1 ACS/SBC ACCUM SBC F165LP none none none none 1 608.0 S NGC5204-ULX 2 ACS/SBC ACCUM SBC PR130L none none none none 1 2088.0 S NGC5204-ULX 3 ACS/SBC ACCUM SBC PR130L none none none none 2 2827.0 S 10814( 4) - 08/29/06 12:48 - [ 5] Visit: 02 Visit Priority: Visit Requirements: ORIENT 78.0D TO 148.0 D; ORIENT 258.0D TO 328.0 D 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 NGC3031-ULX ACS/SBC ACCUM SBC F165LP 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3031-ULX ACS/SBC ACCUM SBC PR130L 1 2150 S ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC3031-ULX ACS/SBC ACCUM SBC PR130L 1 2880 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC3031-ULX 1 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A NGC3031-ULX 2 ACS/SBC ACCUM SBC PR130L none none none none 1 N/A NGC3031-ULX 3 ACS/SBC ACCUM SBC PR130L none none none none 2 N/A 10814( 4) - 08/29/06 12:48 - [ 6] Visit: 03 Visit Priority: Visit Requirements: ORIENT 42.0D TO 83.0 D; ORIENT 114.0D TO 144.0 D; ORIENT 94.0D TO 103.0 D; ORIENT 222.0D TO 263.0 D; ORIENT 294.0D TO 324.0 D 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 NGC1313-ULX ACS/SBC ACCUM SBC F165LP 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1313-ULX ACS/SBC ACCUM SBC PR130L 1 2150 S ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC1313-ULX ACS/SBC ACCUM SBC PR130L 1 2880 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC1313-ULX 1 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A NGC1313-ULX 2 ACS/SBC ACCUM SBC PR130L none none none none 1 N/A NGC1313-ULX 3 ACS/SBC ACCUM SBC PR130L none none none none 2 N/A 10814( 4) - 08/29/06 12:48 - [ 7] Visit: 04 Visit Priority: Visit Requirements: ORIENT 0.0D TO 46.0 D; ORIENT 57.0D TO 93.0 D; ORIENT 237.0D TO 273.0 D; ORIENT 179.0D TO 226.0 D 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 HOLMII-ULX ACS/SBC ACCUM SBC F165LP 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 2 HOLMII-ULX ACS/SBC ACCUM SBC PR130L 1 2190 S ------------------------------------------------------------------------------------------------------------------------------------ 3 HOLMII-ULX ACS/SBC ACCUM SBC PR130L 1 2920 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 | ------------------------------------------------------------------------------------------------------------------------------------ HOLMII-ULX 1 ACS/SBC ACCUM SBC F165LP none none none none 1 N/A HOLMII-ULX 2 ACS/SBC ACCUM SBC PR130L none none none none 1 N/A HOLMII-ULX 3 ACS/SBC ACCUM SBC PR130L none none none none 2 N/A 10814( 4) - 08/29/06 12:48 - [ 8] Summary Form for Proposal 10814 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 279.0D TO 332.0 D; ORIENT 99.0D TO 152.0 D; ORIENT 52.0D TO 73.0 D; ORIENT 232.0D TO 253.0 D; ORIENT 78.0D TO 148.0 D; ORIENT 258.0D TO 328.0 D; ORIENT 42.0D TO 83.0 D; ORIENT 114.0D TO 144.0 D; ORIENT 94.0D TO 103.0 D; ORIENT 222.0D TO 263.0 D; ORIENT 294.0D TO 324.0 D; ORIENT 0.0D TO 46.0 D; ORIENT 57.0D TO 93.0 D; ORIENT 237.0D TO 273.0 D; ORIENT 179.0D TO 226.0 D; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F165LP PR130L ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC5204-ULX NGC3031-ULX NGC1313-ULX HOLMII-ULX ------------------------------------------------------------------------------------------------------------------------------------