XMM and HST Target of Opportunity Observations of Tidal Disruption Events

FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser Hi Alison, Please find attached a new submission for 14483, it now features 3 new WFC3/UVIS visits, with F475W and F814W observations. Let me know any issues. Cheers, Andrew 788878024 ----- Attempting Submission 2 (Tue Jul 25 12:44:13 GMT 2017) ----- I believe these warnings refer to background issues. We have moved our target close to the readout in each case to mitigate the CTE. If it is necessary to include flash as well then please let us know. XMM and HST Target of Opportunity Observations of Tidal Disruption Events Tidal disruption events (TDEs), where a star is disrupted while passing close to a black hole, enable a view of accretion onto supermassive objects from quiescence to super-Eddington rates, on a timescale of a few years. Here we propose to characterise the spectral and temporal properties two TDEs found in AO15. As part of a comprehensive multiwavelength campaign we will use XMM-Newton and HST to map either side of the expected hot black-body peak; search for evidence of non-thermal components; track the cooling of the event and study the long and short timescale variability of the sources. In doing so we will create exquisite, panchromatic pictures of these extreme events. We request observations of GRB 170714A that has been triggered with our XMM programme. We will use three visits to map the evolution of the transient using the F475W and F814W filters given the evidence for modest extinction. In each visit we will place the target near the corner of the chip to avoid CTE problems (we do not then pre-flash the chip). This is established through POS-TARG offsets to the UVIS2 aperture of -60 and -30 arcsec respectively. For each filter we will obtain 3 dithered exposures per orbit. AGN/QUASARS 6 false false false false false false SUPPORTED UNIDENTIFIED X-RAY EMITTER J2000 WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 3

false

Timing link suitability includes constraints ([A2 After A1 by 20.0 to 30.0 days]) The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1500972860032 /Users/levan/OP-cache/14483-vA1.xml (Tic-Visit :proposal-id 14483 :visit-id "A1" :proposal-version -1 :trans-version "20170613" :date "25-Jul-2017 09:54:19.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1732496 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14483 :visit-id "A1" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14483 :visit-id "A1" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2756 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([A2 After A1 by 20.0 to 30.0 days] [A3 After A2 by 20.0 to 30.0 days]) The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1500985861910 /private/var/folders/8d/jkscrd891rl041p94sl_wts40000gn/T/OPVisit9045691307275706418.xml (Tic-Visit :proposal-id 14483 :visit-id "A2" :proposal-version -1 :trans-version "20170613" :date "25-Jul-2017 13:31:01.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1732496 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14483 :visit-id "A2" :obset-id "A2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14483 :visit-id "A2" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2756 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([A3 After A2 by 20.0 to 30.0 days]) The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1500985867549 /private/var/folders/8d/jkscrd891rl041p94sl_wts40000gn/T/OPVisit5290574398528818166.xml (Tic-Visit :proposal-id 14483 :visit-id "A3" :proposal-version -1 :trans-version "20170613" :date "25-Jul-2017 13:31:07.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1732496 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14483 :visit-id "A3" :obset-id "A3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14483 :visit-id "A3" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2756 :al-overhead-at-end 116 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 1 0