Submission failed communicating with the submission server: java.rmi.UnknownHostException: Unknown host: clotho.stsci.edu; nested exception is: java.net.UnknownHostException: clotho.stsci.edu Submission failed communicating with the submission server: java.rmi.UnknownHostException: Unknown host: clotho.stsci.edu; nested exception is: java.net.UnknownHostException: clotho.stsci.edu Submission failed communicating with the submission server: java.rmi.UnknownHostException: Unknown host: clotho.stsci.edu; nested exception is: java.net.UnknownHostException: clotho.stsci.edu Submission failed communicating with the submission server: java.rmi.UnknownHostException: Unknown host: clotho.stsci.edu; nested exception is: java.net.UnknownHostException: clotho.stsci.edu Assigned ID: 719 ----- Attempting Submission 1 (Fri Feb 24 21:39:48 GMT 2012) ----- HST Phase I Proposal 719 (ms07prop_2012.apt) successfully submitted. ----- Attempting Submission 2 (Fri Feb 24 21:47:32 GMT 2012) ----- Changed ACQ/PEAK and ACCUM apertures to 52x0.1E1. ----- Attempting Submission 1 (Fri Jul 06 15:45:02 GMT 2012) ----- HST Phase II Proposal 12895 (MS07_phase2.apt) successfully submitted. ----- Attempting Submission 2 (Fri Jul 06 18:20:33 GMT 2012) ----- HST Phase II Proposal 12895 (MS07_phase2.apt) successfully submitted. ----- Attempting Submission 3 (Fri Jul 06 19:39:09 GMT 2012) ----- We propose to obtain STIS spectroscopy of the brightest cluster galaxy (BCG) in the MS0735.6+7421 cluster to measure the mass of its nuclear black hole. Recent studies have shown that nuclear black holes in BCGs may be more massive than expected based on the stellar velocity dispersion of the host galaxy. With the largest stellar core radius (3.8 kpc) and the most energetic (1E62 erg) AGN outburst known, the BCG in MS0735 is a strong candidate for harboring nuclear black hole mass exceeding 10 billion solar masses. The proposed spectra will be sensitive to black hole masses above ~7E9 solar masses, which is only 40% larger than scaling relations between black hole mass and bulge luminosity predict for MS0735. Our mass measurement will be sensitive to any significant upward departure from the mean scaling relations, and thus will place, at minimum, a significant constraint on the upper mass limit of black holes. Our program will likely yield the first dynamical evidence for an ultramassive black hole. Our observations will search for an unusually massive black hole in the MS0735 BCG, which is experiencing the most energetic AGN outburst known (1E62 erg, McNamara et al. 2009). Our mass measurement, to be obtained using MS0735's bright central nebular emission, will place, at minimum, a significant constraint on the upper mass limit of black holes. Our program will likely yield the first dynamical evidence for an ultramassive black hole. Since the BCG in MS0735 is an extended source, acquisition and peak-up will be performed on a nearby star (HST ID N76K001232) and a fixed offset will be applied to locate the galaxy center. The central coordinates for the star were determined using an HST R-band image taken in 2006. These coordinates are consistent, within uncertainties, with the coordinates listed in the STScI GSC2 database, which were determined from an observation in 1992. With such insignificant motion over the span of 15 years, the proper motion of the star can be neglected. The offset distance to the BCG, determined using brightest pixels in the R-band image, is -9.661 sec and 3.38" in RA and DEC, respectively. The STIS/CCD configuration will be used to obtain a spectrum of the Hα + [N II] line centroids and shapes as a function of position along the slit. With a redshift of 0.216, the Hα line in MS0735 lies at λ7980A. We will use the G750M grating in first order centered at λ7795A. The 52x0.1 arcsec slit will be used to resolve the gas inside the black hole's radius of influence. A total of 8 orbits were granted for this observation, which will be divided into two visits. Four of these orbits will be performed with the slit oriented along the semi-major axis of the galaxy -- which lies roughly along the jet axis -- and the other four will use a perpendicular slit orientation. Using these two slit orientations will allow us to correct for any non-gravitational motion caused by the jet. The STIS Exposure Time Calculator estimates that the acquisition of the star will take ~4 seconds and the peak-up will take ~9 seconds. The ACQ and ACQ/PEAK exposures will be applied on each orbit. Data will be accumulated following the short pointing maneuver to focus on the BCG. The exposure is dithered into 3 sub-exposures, each with a CR-SPLIT of 2, for a total of 6 sub-exposures. The dithering will shift the slit along its length by 5 pixels (0.25"). This shift will aid in the removal of cosmic rays and hot pixels. The data accumulation accounts for the remainder of each orbit's visibility window. A total exposure time of ~8450 seconds will be obtained for each visit. A fringe flat calibration will be performed during occultation in each orbit. AGN/QUASARS 12 false 0.0 0.0 false false false false SUPPORTED CLUSTER OF GALAXIES COOLING FLOW JET RICH CLUSTER This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 STAR K III-I K V-IV J2000 STIS/CCD Spectroscopic No No G750M 7795 STIS/CCD Spectroscopic No No G750M 7795 POS-TARG DITHER 0.25 LINE false false 3 90.0 STIS-ALONG-SLIT 1 false 1341600346048 /home/adrian/HST_proposal/OP-cache/MS07_phase2-v01.xml The scheduling data was generated by CASM 20.2. CASM was run in Phase II mode. 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CASM was run in Phase II mode. (Tic-Visit :proposal-id 12895 :visit-id "02" :proposal-version -1 :trans-version "20120604" :date "06-Jul-2012 14:16:08.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 684816 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12895 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12895 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3302 :al-overhead-at-end 72 :internal-dur-at-end 335 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3635 :pcs-gap 0 ) (Tic-Orbit :proposal-id 12895 :visit-id "02" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3410 :al-overhead-at-end 0 :internal-dur-at-end 335 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3635 :pcs-gap 0 ) (Tic-Orbit :proposal-id 12895 :visit-id "02" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3410 :al-overhead-at-end 0 :internal-dur-at-end 335 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3635 :pcs-gap 0 ) (Tic-Orbit :proposal-id 12895 :visit-id "02" :orbit-number 4 :pcs-time 222 :si-vis-utilization 3410 :al-overhead-at-end 0 :internal-dur-at-end 754 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3635 :pcs-gap 0 ) true 4 0