13813( 3) - 11-Aug-2014 15:19:31 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13813 Version: 3 Check-in Time: 11-Aug-2014 15:19:31 STScI Edit Number: 0 Title Mapping the Broad-band Spectrum of a New Candidate Intermediate Mass Black Hole ------------------------------------------------------------------------------------ Type Cycle GO 22 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Sean A. Farrell University of Sydney Y CoI: Dr. Jeanette Gladstone University of Alberta N ------------------------------------------------------------------------------------ Abstract We request joint XMM-Newton & HST observations of a new intermediate mass black hole candidate in the galaxy LEDA 87326 to map the broad-band spectral energy distribution from X-ray to near-IR. Previous observations with the XMM-Newton EPIC and OM cameras detected an X-ray source with an observed 0.2-10 keV luminosity of 6E41 erg/s, with the X-ray spectrum dominated by a hard power law and the UV/optical data consistent with thermal emission from a cool (~0.08 keV) accretion disc. The high X-ray luminosity and low disc temperature imply a black hole mass > 4000 Msun. By observing this source simultaneously with XMM-Newton and the HST we will confirm that the observed optical emission is from an accretion disc and determine whether any reprocessing in the outer disc is present. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will observe a new intermediate mass black hole candidate in the galaxy LEDA 87326 simultaneously with XMM-Newton and HST to map the broad-band spectral energy distribution from X-ray to near-IR. We will image the target with HST imaging observations totalling 3 orbits with the ACS/SBC in the far-UV (F115LP & F165LP filters), the WFC3/UVIS in the near-UV (F300X filter) and optical g (F475W filter), and the WFC3/IR in the near-IR H (F160W filters) bands. We request that the XMM-Newton and HST observations take place within +/- 7 days of each other if possible. We have split the HST observations into two visits (one containing all the ACS/SBC exposures and the other the WFC3 UVIS/IR exposures) to aid in schedulability of the program. Our exposure times were dictated by the overheads for each exposure rather than exposure times necessary to obtain sufficient S/N. As such, a reduction in the orbital visibility period for each orbit would not negatively impact our program, so long as each exposure (if trimmed down to the overhead value) still fits within the specified orbit. ------------------------------------------------------------------------------------ 13813( 3) - 11-Aug-2014 15:19:31 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 L87326-X1 UNIDENTIFIED, ACCRETION RA=01H25M58.1000S, J2000 V = 21 +/- 1 uvw1 = 22.3 +/- 0.4 mag, B DISK, ULTRAVIOLET DEC=-01D17'14.80" = 22 +/- 0.8 mag, u = 21.7 +/- 0.2 mag, EMITTER, X-RAY EMITTER g = 21.9 +/- 0.5 mag, r = 21.6 +/- 0.5 mag, i > 22.6 mag, z > 22 mag Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 13813( 3) - 11-Aug-2014 15:19:31 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.179 Line_Spacing 0.116 Coordinate_Frame POS-TARG Pattern_Orient 20.02 Angle_Between_Sides 63.65 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 4 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-UVIS Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 23.02 Line_Spacing 35.212 Coordinate_Frame POS-TARG Pattern_Orient 0.713 Angle_Between_Sides 89.287 Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ 13813( 3) - 11-Aug-2014 15:19:31 - [ 4] Visit: 01 Visit Requirements: GROUP 01, 02 WITHIN 7D On Hold Comments: Additional Comments: F115LP and F165LP exposures in the far UV using the ACS/SBC. To be coordinated with XMM-Newton observations (preferably to take place within 7 days of the XMM exposures). Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 L87326-X1 ACS/SBC ACCUM SBC F115LP 1 1500 S PATTERN 1 1 see below (1145 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 L87326-X1 ACS/SBC ACCUM SBC F165LP 1 1500 S PATTERN 1 2 see below (1200 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 | ------------------------------------------------------------------------------------------------------------------------------------ L87326-X1 1 ACS/SBC ACCUM SBC F115LP 1 none none none 1 279.5 S L87326-X1 1 ACS/SBC ACCUM SBC F115LP 2 none none none 1 288.5 S L87326-X1 1 ACS/SBC ACCUM SBC F115LP 3 none none none 1 288.5 S L87326-X1 1 ACS/SBC ACCUM SBC F115LP 4 none none none 1 288.5 S L87326-X1 2 ACS/SBC ACCUM SBC F165LP 1 none none none 1 300.0 S L87326-X1 2 ACS/SBC ACCUM SBC F165LP 2 none none none 1 300.0 S L87326-X1 2 ACS/SBC ACCUM SBC F165LP 3 none none none 1 300.0 S L87326-X1 2 ACS/SBC ACCUM SBC F165LP 4 none none none 1 300.0 S 13813( 3) - 11-Aug-2014 15:19:31 - [ 5] Visit: 02 Visit Requirements: GROUP 02, 01 WITHIN 7D On Hold Comments: Additional Comments: F300X, F475W, and F160W exposures in optical/near-IR using the WFC3 UVIS and IR. To be coordinated with XMM-Newton observations (preferably to take place within 7 days of the XMM exposures). Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 L87326-X1 WFC3/UVI ACCUM UVIS F300X FLASH=8 1 1200 S PATTERN 2 1 S see below (1495 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 L87326-X1 WFC3/UVI ACCUM UVIS F475W 1 1200 S PATTERN 2 2 S see below (1514 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 L87326-X1 WFC3/IR MULTIAC IR F160W NSAMP=9, SAMP-SEQ=SPARS50 1 DEF PATTERN 4 3 CUM (1611.744 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 | ------------------------------------------------------------------------------------------------------------------------------------ L87326-X1 1 WFC3/UVI ACCUM UVIS F300X 1 none none none 1 451.0 S S L87326-X1 1 WFC3/UVI ACCUM UVIS F300X 2 none none none 1 348.0 S S L87326-X1 1 WFC3/UVI ACCUM UVIS F300X 3 none none none 1 348.0 S S L87326-X1 1 WFC3/UVI ACCUM UVIS F300X 4 none none none 1 348.0 S S L87326-X1 2 WFC3/UVI ACCUM UVIS F475W 1 none none none 1 348.0 S S L87326-X1 2 WFC3/UVI ACCUM UVIS F475W 2 none none none 1 348.0 S S L87326-X1 2 WFC3/UVI ACCUM UVIS F475W 3 none none none 2 466.0 S S L87326-X1 2 WFC3/UVI ACCUM UVIS F475W 4 none none none 2 352.0 S S L87326-X1 3 WFC3/IR MULTIAC IR F160W 1 none none none 2 N/A CUM L87326-X1 3 WFC3/IR MULTIAC IR F160W 2 none none none 2 N/A CUM 13813( 3) - 11-Aug-2014 15:19:31 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ L87326-X1 3 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM L87326-X1 3 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 13813( 3) - 11-Aug-2014 15:19:31 - [ 7] Summary Form for Proposal 13813 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, SBC, UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=8, NSAMP=9, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GROUP 01, 02 WITHIN 7D, GROUP 02, 01 WITHIN 7D, PATTERN 1 1, PATTERN 1 2, PATTERN 2 1, PATTERN 2 2, PATTERN 4 3 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F115LP, F160W, F165LP, F300X, F475W ------------------------------------------------------------------------------------------------------------------------------------ Target Names L87326-X1 ------------------------------------------------------------------------------------------------------------------------------------