11703( 5) - 27-Jul-2009 21:06:30 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11703 Version: 5 Check-in Time: 27-Jul-2009 21:06:30 STScI Edit Number: 3 Title The Nature of the Black Hole in a NGC 4472 Globular Cluster and the Origin of Its Broad [OIII] Emission ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Stephen E. Zepf Michigan State University CoI: Dr. Thomas J. Maccarone University of Southampton N CoI: Dr. Daniel Stern Jet Propulsion Laboratory N CoI: Dr. Arunav Kundu Michigan State University N CoI: Dr. Katherine Rhode Indiana University System N CoI: Prof. John Salzer Wesleyan University N CoI: Dr. Robin Ciardullo The Pennsylvania State University N CoI: Dr. Caryl Gronwall The Pennsylvania State University N ------------------------------------------------------------------------------------ Abstract We propose to use STIS to obtain optical spectroscopy at high spatial resolution of the black hole-hosting globular cluster RZ2109 in the Virgo elliptical NGC 4472. This is motivated by our very recent discovery broad [OIII] 4959, 5007 emission with a width of several thousand km/s in this globular cluster. The STIS spectroscopy will enable us to determine if the very broad [OIII] emission is due to material driven at high velocity from the central accreting black hole across the globular cluster, or if the velocity widths are due to gravitational motions very close to the central black hole. In the former case, the [OIII] emission should extend over a few-tenths of an arcsecond and be spatially resolved by HST and STIS, while in the latter case, the emission lines will be unresolved. Distinguishing between these two possibilities will allow us to - 1) determine whether the black hole is of intermediate mass or a stellar mass, and thereby whether the black hole mass - sigma relation extends to globular cluster masses, 2) test models of black hole formation and evolution in dense stellar systems, and 3) address the nature of accretion in the high luminosity black-hole X-ray source, and constrain the feedback processes from luminous black holes into their surrounding medium in dense stellar systems. ------------------------------------------------------------------------------------ Observations Description ------------------------ The primary goal of our proposal is to determine whether the observed broad [OIII] emission in the black-hole hosting globular cluster RZ2109 in NGC 4472 comes from spatially extended material driven across the globular cluster, corresponding to scale of a few tenths of an arcsecond, or if the large velocity width of the [OIII] is caused by material located very near the black hole, in which case it will be unresolved, even with HST. Distinguishing between these two requires the spatial resolution of HST, thus we will use STIS with the G430L grating and the 50x0.2 slit. We will specifically obtain spectra in four visits of four orbits each, with somewhat different position angles for each visit in order to constrain asymmetry in any spatially extended material. 11703( 5) - 27-Jul-2009 21:06:30 - [ 2] Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11703( 5) - 27-Jul-2009 21:06:30 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4472BH-GC STELLAR CLUSTER, RA=12H29M39.6790S +/- 0.1", J2000 V = 1470 V = 21 GLOBULAR CLUSTER DEC=+07D53'32.80" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11703( 5) - 27-Jul-2009 21:06:30 - [ 4] Visit: 01 Visit Requirements: ORIENT 275D TO 305 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 NGC4472BH-G STIS/CCD ACQ F28X50LP MIRROR 1 120 S GS ACQ SCENARIO BASE1B3 C Comments: Exposure time for ACQ is set by requiring S/N=40 for V=21 object spread out over a diameter of 0.4 arcseconds. This is true for all ACQ exposures in this program. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 1900 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC4472BH-GC 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 1 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 2 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 2 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 3 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 3 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 4 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 4 N/A 11703( 5) - 27-Jul-2009 21:06:30 - [ 5] Visit: 02 Visit Requirements: ORIENT 130D TO 170 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 NGC4472BH-G STIS/CCD ACQ F28X50LP MIRROR 1 120 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 1900 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC4472BH-GC 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 1 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 2 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 2 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 3 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 3 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 4 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 4 N/A 11703( 5) - 27-Jul-2009 21:06:30 - [ 6] Visit: 03 Visit Requirements: ORIENT 190D TO 255 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 NGC4472BH-G STIS/CCD ACQ F28X50LP MIRROR 1 120 S GS ACQ SCENARIO BASE1B3 C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 1900 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC4472BH-GC 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 1 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 2 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 2 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 3 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 3 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 4 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 4 N/A 11703( 5) - 27-Jul-2009 21:06:30 - [ 7] Visit: 04 Visit Requirements: ORIENT 260D TO 280 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 NGC4472BH-G STIS/CCD ACQ F28X50LP MIRROR 1 120 S C ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 1900 S C ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4472BH-G STIS/CCD ACCUM 52X0.2 G430L 4300 1 2800 S C ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC4472BH-GC 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 1 N/A NGC4472BH-GC 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 1 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 2 N/A NGC4472BH-GC 3 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 2 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 3 N/A NGC4472BH-GC 4 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 3 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 1 4 N/A NGC4472BH-GC 5 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none 2 4 N/A 11703( 5) - 27-Jul-2009 21:06:30 - [ 8] Summary Form for Proposal 11703 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.2, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 130D TO 170 D, ORIENT 190D TO 255 D, ORIENT 260D TO 280 D, ORIENT 275D TO 305 D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G430L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC4472BH-GC ------------------------------------------------------------------------------------------------------------------------------------