14211( 2) - 21-Jul-2015 14:15:55 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14211 Version: 2 Check-in Time: 21-Jul-2015 14:15:55 STScI Edit Number: 0 Title Diagnosing the super-Eddington accretion/outflow regime using the microquasar MQ1 in M83 ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Roberto Soria Curtin University Y CoI: Dr. William P. Blair The Johns Hopkins University N CoI: Dr. Knox S. Long Eureka Scientific Inc. N CoI: Dr. P. Frank Winkler Middlebury College N ------------------------------------------------------------------------------------ Abstract We are addressing an important, unsolved astrophysical problem: determining the radiative and mechanical power of black holes at extreme rates of mass accretion, at or above their Eddington limit. In our recent multiband imaging study of the spiral galaxy M83 with HST/WFC3, Chandra and ATCA, we discovered a stellar-mass black hole with strong radio, X-ray and optical line emission. WFC3 optical imaging resolves the source into a core and two lobes or hot spots (separated by 0".6), the result of powerful jets interacting with the surrounding interstellar medium. We now propose to use STIS to do spatially-resolved spectroscopy of this microquasar, with the following objectives: a) determine whether the optical line emission of the core is mostly from photo-ionized gas and the lobe emission from shock-ionized gas; b) use the optical line luminosities as proxies for the integrated radiative and mechanical power of the black hole; c) measure or constrain the expansion velocity of the gas in the core and in the lobes, which will help us determine the duration and integrated energy of this powerful accretion/ejection phase. ------------------------------------------------------------------------------------ Observations Description ------------------------ The is a proposal to observe a new microquasar, MQ1, in M83, using the STIS longslit CCD (G750M and G450L). The object is an emission line source, but it is seen projected against a moderately bright but unresolved stellar continuum, about 5" NE of the M83 nucleus. The source has a compact core and two bright surrounding knots of emission, and we need to align the STIS slit along the direction of the knots. The source emits in [O III] but because of the complex background, we will acquire using a blind offset from a nearby offset star, chosen from existing WFC3 imagery. (Because of the M83 galaxy surrounding, no GSC stars are available nearby.) We have calculated accurate offset coordinates for MQ1 from the offset star. We desire a nominal aperture position angle of 77 degrees to align the slit on the structure, but provide a +/-5 degree flexibility on the alignment. Also, we 14211( 2) - 21-Jul-2015 14:15:55 - [ 2] allow modulo 180 degrees, so STIS ORIENT ranges of 117 - 127 and 297 - 307 degrees are allowed. To mitigate CTE, we choose aperture 52x0.2E1. ------------------------------------------------------------------------------------ 14211( 2) - 21-Jul-2015 14:15:55 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 MQ1-OFFSET STAR, SUPERGIANT O RA=13H37M0.7740S +/- 0.2", J2000 V = 21.8 DEC=-29D51'47.28" +/- 0.2" Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 2 MQ1 ISM, EMISSION LINE RA-OFF=0.345S, DEC-OFF=-4.75", J2000 V = 24 Various line emission at ~a few NEBULA, JET, KNOT, FROM 1 E-16 erg/cm2/s LOBE, SHOCK FRONT Extended: YES Comments: MQ1 is a pure emission line source, but it is projected against unresolved and variable stellar continuum. ------------------------------------------------------------------------------------------------------------------------------------ 14211( 2) - 21-Jul-2015 14:15:55 - [ 4] Visit: 01 Visit Requirements: ORIENT 117D TO 127 D; ORIENT 297D TO 307 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 MQ1-OFFSET STIS/CCD ACQ F28X50LP MIRROR 1 120 S (120 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MQ1 STIS/CCD ACCUM 52X0.2E1 G750M 6581 1 884 S (884 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MQ1 STIS/CCD ACCUM 52X0.2E1 G750M 6581 1 884 S (884 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 MQ1 STIS/CCD ACCUM 52X0.2E1 G750M 6581 1 1372 S (1372 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 MQ1 STIS/CCD ACCUM 52X0.2E1 G750M 6581 1 1372 S (1372 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 MQ1 STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 1412 S (1412 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 MQ1 STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 1412 S (1412 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 MQ1 STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 1412 S (1412 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 MQ1 STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 1412 S (1412 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 | ------------------------------------------------------------------------------------------------------------------------------------ MQ1-OFFSET 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A MQ1 2 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 1 1 N/A MQ1 2 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 2 1 N/A MQ1 3 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 1 1 N/A MQ1 3 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 2 1 N/A MQ1 4 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 1 2 N/A MQ1 4 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 2 2 N/A MQ1 5 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 1 2 N/A MQ1 5 STIS/CCD ACCUM 52X0.2E1 G750M 6581 none none none 2 2 N/A 14211( 2) - 21-Jul-2015 14:15:55 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ MQ1 6 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 3 N/A MQ1 6 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 3 N/A MQ1 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 3 N/A MQ1 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 3 N/A MQ1 8 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 4 N/A MQ1 8 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 4 N/A MQ1 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 4 N/A MQ1 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 4 N/A 14211( 2) - 21-Jul-2015 14:15:55 - [ 6] Summary Form for Proposal 14211 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.2E1, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 117D TO 127 D, ORIENT 297D TO 307 D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G430L, G750M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names MQ1, MQ1-OFFSET ------------------------------------------------------------------------------------------------------------------------------------