13950( 8) - 31-Mar-2016 20:28:29 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13950 Version: 8 Check-in Time: 31-Mar-2016 20:28:29 STScI Edit Number: 3 Title The Astrophysics of the Most Energetic Gamma-Ray Bursts ------------------------------------------------------------------------------------ Type Cycle GO 22 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Andrew S. Fruchter Space Telescope Science Institute Y CoI: Dr. Rebekah Hounsell University of Illinois at Urbana - N Champaign CoI: Dr. Daniel Perley University of Copenhagen, Niels Bohr N Institute CoI: Dr. Kuntal Misra Aryabhatta Research Institute of N Observational Sci CoI: Dr. John F. Graham Max-Planck-Institut fur extraterrestrische N Physik CoI: Dr. Asaf Peer University College Cork N CoI: Dr. Stephen T. Holland Eureka Scientific Inc. N CoI: Prof. Nial R. Tanvir University of Leicester N CoI: Prof. Andrew J. Levan The University of Warwick N CoI: Dr. Stephen Bradley Cenko NASA Goddard Space Flight Center N ------------------------------------------------------------------------------------ Abstract The Large Area Telescope (LAT) of Fermi has found a sample of highly relativistic gamma-ray bursts (GRBs), which may be among the most energetic bursts ever discovered. Here we propose to use Chandra and HST to follow the late time X-ray and optical light curves of a LAT detected burst that also has excellent early multiwavelength coverage. Our observations, in conjunction with the Fermi data, will allow us to measure the energy and the bulk Lorentz factor of the explosion. Recent work on some of the most powerful GRBs begins to substantially constrain physical models of the progenitors. The energetics of the highly relativistic LAT bursts may greatly strengthen these constraints and provide new insight into the currently unknown mechanism that determines the energy of a GRB. ------------------------------------------------------------------------------------ Observations Description ------------------------ We plan five visits with HST: the first an orbit long, the second and third each two orbits long, with the fourth and fith three orbits long. The first visit will occur about around twenty days after outburst. The second will be around forty days after outburst. The third 80 days and the fourth 160. The exact times will be scaled according to the decay seen from the ground. The fith visit will be taken at least nine months after the burst to allow an accurate host subtraction. We will use the UVIS camera on WFC3 because WFC3 easily has as good sensitivity on point sources as ACS with smaller detector-induced noise sources (CTE, bias-striping, etc). We will choose the filter at the time of the ToO to match the best observed band from the ground (most likely a red band) and to avoid a SN contribution if possible. ------------------------------------------------------------------------------------ 13950( 8) - 31-Mar-2016 20:28:29 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A GALAXY, HIGH REDSHIFT RA=08H26M40.9700S, J2000 V = 22 +/- 1 GALAXY DEC=+63D50'3.29" Reference Frame: Other: XRT ------------------------------------------------------------------------------------------------------------------------------------ 13950( 8) - 31-Mar-2016 20:28:29 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-MIN Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.572 Line_Spacing 0.365 Coordinate_Frame POS-TARG Pattern_Orient 18.528 Angle_Between_Sides 74.653 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE-3PT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.135 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 4 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-LINE-3PT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.605 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 41.788 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 13950( 8) - 31-Mar-2016 20:28:29 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 6 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.1305 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 7 Primary_Pattern Secondary_Pattern Pattern_Type LINE WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER DITHER Number_Of_Points 2 4 Point_Spacing .1305 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 46.84 23.884 Angle_Between_Sides 81.785 Center_Pattern NO NO ------------------------------------------------------------------------------------------------------------------------------------ 13950( 8) - 31-Mar-2016 20:28:29 - [ 5] Visit: 02 (GRB-150314A) Visit Requirements: ORIENT 31D TO 90 D; ORIENT 121D TO 180 D; ORIENT 211D TO 270 D; ORIENT 301D TO 360 D; BEFORE 01-APR-2015:00:00:00 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/UVI ACCUM UVIS2 F606W 1 1500 S POS TARG 40, -25; S see below PATTERN 1 1 (6160 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 1 1512.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 1 1512.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 2 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 2 1568.0 S S 13950( 8) - 31-Mar-2016 20:28:29 - [ 6] Visit: 03 (Epoch 3) Visit Requirements: ORIENT 112D TO 130 D 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/UVI ACCUM UVIS2 F606W 1 1500 S POS TARG 40, -25; S see below PATTERN 7 1 (12432 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 1 none none 1 1512.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 2 none none 1 1512.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 3 none none 2 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 4 none none 2 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 1 none none 3 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 2 none none 3 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 3 none none 4 1568.0 S S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 4 none none 4 1568.0 S S 13950( 8) - 31-Mar-2016 20:28:29 - [ 7] Visit: 04 (Epoch 4) Visit Requirements: On Hold Comments: Additional Comments: The F606W dither pattern is a place holder. If we use these exposure lengths we will want more dithers in F606W. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/IR MULTIAC IR-UVIS F160W NSAMP=14, SAMP-SEQ=STEP200 1 DEF PATTERN 4 1 CUM (4197.694 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB-150314A WFC3/UVI ACCUM UVIS2 F606W 1 900 S PATTERN 3 2 S (2700 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 2 N/A S GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 3 N/A S GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 3 N/A S 13950( 8) - 31-Mar-2016 20:28:29 - [ 8] Visit: 05 (Epoch 5) Visit Requirements: On Hold Comments: Additional Comments: The F606W dither pattern is a place holder. If we use these exposure lengths we will want more dithers in F606W. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/IR MULTIAC IR-UVIS F160W NSAMP=14, SAMP-SEQ=STEP200 1 DEF PATTERN 4 1 CUM (4197.694 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB-150314A WFC3/UVI ACCUM UVIS2 F606W 1 1200 S PATTERN 3 2 S (3600 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 2 N/A S GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 3 N/A S GRB-150314A 2 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 3 N/A S 13950( 8) - 31-Mar-2016 20:28:29 - [ 9] Visit: 06 (GRB 150314A UVIS Reference) Visit Requirements: ORIENT 100D TO 112 D 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/UVI ACCUM UVIS2 F606W 1 1450 S POS TARG 40, -25; S (11600 S) PATTERN 7 1 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 1 none none 1 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 2 none none 1 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 3 none none 2 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 1 4 none none 2 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 1 none none 3 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 2 none none 3 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 3 none none 4 N/A S GRB-150314A 1 WFC3/UVI ACCUM UVIS2 F606W 2 4 none none 4 N/A S 13950( 8) - 31-Mar-2016 20:28:29 - [ 10] Visit: 07 (GRB 150314A IR FIELD) Visit Requirements: BETWEEN 01-APR-2016 AND 01-JUN-2016 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB-150314A WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=STEP100 1 DEF PATTERN 2 1 CUM (2796.93 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB-150314A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB-150314A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 13950( 8) - 31-Mar-2016 20:28:29 - [ 11] Summary Form for Proposal 13950 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, IR-UVIS, UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=13, NSAMP=14, SAMP-SEQ=STEP100, SAMP-SEQ=STEP200 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BEFORE 01-APR-2015:00:00:00, BETWEEN 01-APR-2016 AND 01-JUN-2016, ORIENT 100D TO 112 D, ORIENT 112D TO 130 D, ORIENT 121D TO 180 D, ORIENT 211D TO 270 D, ORIENT 301D TO 360 D, ORIENT 31D TO 90 D, PATTERN 1 1, PATTERN 2 1, PATTERN 3 2, PATTERN 4 1, PATTERN 7 1, POS TARG 40, -25 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F160W, F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB-150314A ------------------------------------------------------------------------------------------------------------------------------------