----- Attempting Submission 1 (Thu Aug 11 20:22:43 GMT 2011) ----- Sw J2058+05: A Possible Second Relativistic Tidal Disruption Flare The recent discovery of the transient source Sw J1644+57 (aka GRB110328A) has unveiled an entirely new class of high-energy outbursts. Like GRBs, the outburst was believed to mark the birth of a relativistic jet, generating luminous X-ray and radio emission. However, the central engine powering Sw J1644+57 was the super-massive black hole in the nucleus of an otherwise normal (i.e., non-active) galaxy. The observed emission may result from the tidal disruption of a star passing too close to the central black hole. Here we request observations of a newly identified high-energy transient, Sw J2058+05, that shares many of the same properties. HST observations will allow us to precisely locate the transient emission with respect to the host galaxy nucleus (cementing the association with a super-massive black hole). These observations will also allow us to better constrain fundamental properties of the host galaxy (morphology, stellar and black hole mass), which is of vital importance for the theoretical interpretation of these sources.
TBD AGN/QUASARS 0 false 0.0 0.0 false false false false SUPPORTED GALAXY ACCRETION DISK JET NUCLEUS J2000 WFC3/UVIS Imaging No No F475W WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F475W WFC3/IR Imaging No No F160W POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 1 false POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 2 false /scr/grb/SwJ2058/hst/ddt/OP-cache/HST-Phase2DD-v01.xml Timing link suitability includes constraints ([02 After 01 by 90.0 to 180.0 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12686 :visit-id "01" :proposal-version -1 :trans-version "20110509" :date "10-Aug-2011 16:00:11.0" :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 1701888 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12686 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12686 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2899 :al-overhead-at-end 116 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3242 :pcs-gap 0 ) true 1 0 /scr/grb/SwJ2058/hst/ddt/OP-cache/HST-Phase2DD-v02.xml Timing link suitability includes constraints ([02 After 01 by 90.0 to 180.0 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12686 :visit-id "02" :proposal-version -1 :trans-version "20110509" :date "10-Aug-2011 16:07:48.0" :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 1701888 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12686 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12686 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2899 :al-overhead-at-end 116 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3242 :pcs-gap 0 ) true 1 0