Science Keywords: Select from 2 to 5 items. Science Keywords is a required field. Please specify your scheduling constraints or 'No Constraints' on all Observation forms. 0 Assigned ID: 1188 ----- Attempting Submission 1 (Sun Jan 05 19:02:31 GMT 2020) ----- Joint XMM-HST Updated to fix flash issue based on ETC calculation. Updated NSAMP to 10 for both spars exposures. -1352015104 ----- Attempting Submission 1 (Tue Feb 18 01:05:11 GMT 2020) ----- HST Phase II Proposal 16063 successfully submitted. Receipt: # 16063-1 ----- Attempting Submission 2 (Sat Apr 04 03:41:13 GMT 2020) ----- The coalescence of binary supermassive black holes (SMBH) in galaxy mergers is thought to constitute the strongest source of gravitational waves. Theory suggests these waves carry momentum causing the merged black hole to experience a velocity recoil or kick that displaces or indeed ejects it from the center of its host galaxy. We request the first XMM-Newton and HST imaging of RXJ1756.4+5235, a source with an o ffset broad line point source that is offset from the nucleus of a nearby galaxy to resolve whether the source is a potential recoiling black hole or a close dual AGN. The point of this observation is to look for extended emission around a point source to test for the presence of a possible recoiling black hole using the i-band and the H-band with WFC3. The object looks like a point source separated by 6.4'' with QSO like emission from a nearby galaxy with extended emission. The WFC3 UVIS detector with F814W will provide the sharpest images with a smaller plate scale to best sample the PSF (0.04''). The F160W observation is critical since the NIR traces the bulk of the stellar mass because ofits sensitivity to the cooler stars in older stellar populations and the NIR is also much less aected by dust extinction. We have designed our images to avoid saturation, but also to limit overheads, so that we have maximal sensitivity to faint features from a host galaxy in the potential recoiling black hole. The i-band psf mag from PS1, is 17.06, which leads to saturation in images of 256s assuming a QSO IRTF template. We chose a 2048x2048 subarray to minizimize buffer dump time. In order to have an unsaturated image we take a short image for 23 seconds followed by a 4 point dither pattern with 591s at each pointing. We use a 4-point dither pattern to improve PSF reconstruction/cosmic rays. On the other hand, in the F160W images, based on the PSF z-band mag of 16.99 and assuming a QSO template there is a saturation in 28 seconds. We note the UKIDSS J-mag is somewhat shorter integrations at 15.43mag in J (2'' diameter aperture) which suggests saturation in 24 seconds, but we expect it contains some amount of extended flux from the nearby host galaxy. We use the 512x512 subarray to reduce readout and buffer dump. This provides a field-of-view (FOV) of 60''x60''. We will use the 4-step BOX dither pattern with 16 reads for cosmic-ray and hot-pixel rejection, and to better sample the PSF. None Required Massive Black Holes And Their Host Galaxies 6 false false false false false false false SUPPORTED GALAXY QUASAR J2000 J2000 i=17.05, 15.43 J WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F814W POS-TARG DITHER 1.716 LINE 1.095 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 1 false POS-TARG DITHER 0.173 LINE 0.112 false false 81.785 4 23.884 WFC3-UVIS-DITHER-BOX 4 false 1585971454620 /Users/mkoss/Desktop/OP-cache/PhaseII Glimpse-v01.xml The scheduling data was generated by CASM 28.0. CASM was run in Phase II mode. (Tic-Visit :proposal-id 16063 :visit-id "01" :proposal-version -1 :trans-version "20191203" :date "03-Apr-2020 20:37:34.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 976864 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16063 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16063 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3000 :al-overhead-at-end 165 :internal-dur-at-end 31 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3333 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16063 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 3004 :al-overhead-at-end 0 :internal-dur-at-end 568 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3333 :pcs-gap 0 ) true 2 0