11551( 4) - 16-Jun-2008 13:29:40 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11551 Version: 4 Check-in Time: 16-Jun-2008 13:29:40 STScI Edit Number: 3 Title When degenerate stars collide: Understanding A New Explosion Phenomena ------------------------------------------------------------------------------------ Type Cycle GO/DD 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Joshua S. Bloom University of California - Berkeley CoI: Dr. Jason X. Prochaska University of California - Santa Cruz N CoI: Mr. Daniel Perley University of California - Berkeley N CoI: Dr. Hsiao-Wen Chen University of Chicago N CoI: Dr. Weidong Li University of California - Berkeley N CoI: Dr. Jay Norris NASA Ames Research Center N CoI: Prof. Max Pettini University of Cambridge N CoI: Prof. Bethany Cobb Yale University N CoI: Mr. Tony Piro University of California - Berkeley N CoI: Dr. Kevin C. Hurley University of California - Berkeley N CoI: Dr. Jonathan Granot Stanford University N CoI: Mr. Adam Miller University of California - Berkeley N CoI: Prof. Eliot Quataert University of California - Berkeley N CoI: Dr. Alex V. Filippenko University of California - Berkeley N CoI: Dr. Peter E. Nugent Lawrence Berkeley National Laboratory N CoI: Mr. Dovi Poznanski Tel Aviv University - Wise Observatory N CoI: Dr. Sebastian Lopez Universidad de Chile N CoI: Dr. Joshua Shiode University of California - Berkeley N CoI: Dr. Charles David Bailyn Yale University N CoI: Mr. Ryan Chornock University of California - Berkeley N CoI: Dr. Maryam Modjaz University of California - Berkeley N CoI: Dr. Andrew Bunker University of Exeter N CoI: Prof. Patrick B. Hall York University N CoI: Dr. Neil Gehrels NASA Goddard Space Flight Center N CoI: Mr. Brian Metzger University of California - Berkeley N CoI: Dr. Andrew J. Levan The University of Warwick N CoI: Dr. Karl Glazebrook The Johns Hopkins University N CoI: Dr. Daniel Kocevski University of California - Berkeley N CoI: Mr. Enrico Ramirez-Ruiz University of Cambridge N CoI: Dr. Nathaniel Butler University of California - Berkeley N CoI: Dr. Nial R. Tanvir University of Leicester N CoI: Dr. Taka Sakamoto NASA Goddard Space Flight Center N CoI: Prof. David N. Burrows The Pennsylvania State University N ------------------------------------------------------------------------------------ Abstract Explosive events seen at extragalactic distances mark the end-state of violent and catastrophic physical processes. Most supernovae and gamma-ray bursts (GRBs), in particular, are thought to herald the death of massive stars and the birth of solar-mass black holes. A minority fraction of GRBs, however, have been circumstantially associated with the merger of degenerate systems (such as black holes and neutron stars). These short-duration bursts are rare and difficult to localize, with only about 2 dozen studied to any degree of detail to date. We 11551( 4) - 16-Jun-2008 13:29:40 - [ 2] believe that we have finally discovered, in the last few days, one of the tell-tale signatures of degenerate merger products --- a "mini-supernova" from the non-relativistic ejecta left over after merger. If true, this long-theorized phenomenon would be an entirely new sort of explosion in the universe. In several rapidly executed visits, HST, coupled with a recently approved Chandra DD proposal to search for underlying afterglow, could make a substantial contribution to our understanding of this phenomena by honing the physical parameters of the event and helping to rule out alternatives. If we are correct in our hypothesis, we have found the first clear cut observational signature in the electromagnetic spectrum of what are expected to the be the dominant sources of gravitational waves for advanced LIGO. ------------------------------------------------------------------------------------ Observations Description ------------------------ see PDF Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11551( 4) - 16-Jun-2008 13:29:40 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB080503 EXT-STAR, GAMMA RAY RA=19H06M28.7750S +/- 05", J2000 V = 25 +/- 3 BURSTER DEC=+68D47'35.50" +/- 0.5" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11551( 4) - 16-Jun-2008 13:29:40 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFPC2-LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.3535 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 45.0 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFPC2-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.559017 Line_Spacing 0.559017 Coordinate_Frame POS-TARG Pattern_Orient 26.56505 Angle_Between_Sides 143.130102 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 11551( 4) - 16-Jun-2008 13:29:40 - [ 5] Visit: 01 Visit Requirements: GYRO MODE 2G 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB080503 WFPC2 IMAGE WFALL F606W CR-SPLIT=1 1 1300 S PATTERN 2 1 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080503 WFPC2 IMAGE WFALL F814W CR-SPLIT=1 1 700 S PATTERN 1 2 see below ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB080503 WFPC2 IMAGE WFALL F450W CR-SPLIT=1 1 700 S PATTERN 1 3 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080503 1 WFPC2 IMAGE WFALL F606W 1 none none none 1 1200.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 2 none none none 1 1100.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 3 none none none 2 1200.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 4 none none none 2 1100.0 S GRB080503 2 WFPC2 IMAGE WFALL F814W 1 none none none 3 700.0 S GRB080503 2 WFPC2 IMAGE WFALL F814W 2 none none none 3 700.0 S GRB080503 2 WFPC2 IMAGE WFALL F814W 3 none none none 3 700.0 S GRB080503 3 WFPC2 IMAGE WFALL F450W 1 none none none 4 700.0 S GRB080503 3 WFPC2 IMAGE WFALL F450W 2 none none none 4 700.0 S GRB080503 3 WFPC2 IMAGE WFALL F450W 3 none none none 4 700.0 S 11551( 4) - 16-Jun-2008 13:29:40 - [ 6] Visit: 02 Visit Requirements: SAME ORIENT AS 01 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB080503 WFPC2 IMAGE WFALL F814W CR-SPLIT=1 1 1080 S PATTERN 2 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080503 WFPC2 IMAGE WFALL F606W CR-SPLIT=1 1 1080 S PATTERN 2 2 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080503 1 WFPC2 IMAGE WFALL F814W 1 none none none 1 N/A GRB080503 1 WFPC2 IMAGE WFALL F814W 2 none none none 1 N/A GRB080503 1 WFPC2 IMAGE WFALL F814W 3 none none none 2 N/A GRB080503 1 WFPC2 IMAGE WFALL F814W 4 none none none 2 N/A GRB080503 2 WFPC2 IMAGE WFALL F606W 1 none none none 3 N/A GRB080503 2 WFPC2 IMAGE WFALL F606W 2 none none none 3 N/A GRB080503 2 WFPC2 IMAGE WFALL F606W 3 none none none 4 N/A GRB080503 2 WFPC2 IMAGE WFALL F606W 4 none none none 4 N/A 11551( 4) - 16-Jun-2008 13:29:40 - [ 7] Visit: 03 Visit Requirements: 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB080503 WFPC2 IMAGE WFALL F606W CR-SPLIT=1 1 1200 S PATTERN 2 1 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080503 WFPC2 IMAGE WFALL F606W CR-SPLIT=1 1 1200 S PATTERN 2 2 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080503 1 WFPC2 IMAGE WFALL F606W 1 none none none 1 1200.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 2 none none none 1 1100.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 3 none none none 2 1200.0 S GRB080503 1 WFPC2 IMAGE WFALL F606W 4 none none none 2 1100.0 S GRB080503 2 WFPC2 IMAGE WFALL F606W 1 none none none 3 1200.0 S GRB080503 2 WFPC2 IMAGE WFALL F606W 2 none none none 3 1100.0 S GRB080503 2 WFPC2 IMAGE WFALL F606W 3 none none none 4 1200.0 S GRB080503 2 WFPC2 IMAGE WFALL F606W 4 none none none 4 1100.0 S 11551( 4) - 16-Jun-2008 13:29:40 - [ 8] Summary Form for Proposal 11551 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFALL ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=1 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GYRO MODE 2G, PATTERN 1 2, PATTERN 1 3, PATTERN 2 1, PATTERN 2 2, SAME ORIENT AS 01 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F450W, F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB080503 ------------------------------------------------------------------------------------------------------------------------------------