16838( 4) - 28-Jul-2022 13:35:43 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16838 Version: 4 Check-in Time: 28-Jul-2022 13:35:43 STScI Edit Number: 0 Title The Astrophysics of the Most Energetic Gamma-Ray Bursts ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Andrew S. Fruchter Space Telescope Science Institute Y CoI: Dr. Kornpob Bhirombhakdi Space Telescope Science Institute N CoI: Dr. Stephen Bradley Cenko NASA Goddard Space Flight Center N CoI: Dr. Antonino Cucchiara College of Marin N CoI: Virginia Cunningham University of Maryland N CoI: Dr. Benjamin Paul Gompertz University of Birmingham N CoI: Dr. Tuomas Kangas Royal Institute of Technology N CoI: Dr. John F. Graham Peking University N CoI: Dr. Kuntal Misra Aryabhatta Research Institute of N Observational Sci CoI: Prof. Andrew James Levan Radboud Universiteit Nijmegen N CoI: Dr. Asaf Pe'er Harvard University N CoI: Dr. Daniel Perley Liverpool John Moores University N CoI: Judith Racusin NASA Goddard Space Flight Center N CoI: Prof. Nial Rahil Tanvir University of Leicester N CoI: Dr. Resmi Lekshmi Indian Institute of Space Science and N Technology ------------------------------------------------------------------------------------ Abstract The Fermi Large Area Telescope (LAT) 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, bulk Lorentz factor, and probe the jet physics of the explosion. Recent work on some of the most powerful GRBs has begun to substantially constrain physical models of the central engine. Our observations may greatly strengthen these constraints as well as provide new insight into the relativistic physics of the bursts. ------------------------------------------------------------------------------------ Observations Description ------------------------ We expect to perform two or three visits with HST on the target GRB. Our default plan is to use both F606W and F160W though the choice of bands will depend on the redshift of the burst and the likelihood of the underlying SN affecting our photometry as well as on the filters used in ground-based follow-up. We will dither to insure good subpixel phase coverage and to reduce issues with bad pixels. ------------------------------------------------------------------------------------ 16838( 4) - 28-Jul-2022 13:35:43 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB-220101A EXT-STAR, GAMMA RAY RA=00H05M24.8160S +/- 0.05", J2000 V = 24 BURSTER DEC=+31D46'8.30" Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 16838( 4) - 28-Jul-2022 13:35:43 - [ 3] TARGET LIST Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ 1 LATGRB EXT-STAR, GAMMA RAY TRIGGERED FOR OBSERVATION BY V = 23 BURSTER CHANDRA ------------------------------------------------------------------------------------------------------------------------------------ 16838( 4) - 28-Jul-2022 13:35:43 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 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: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.145 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 ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 5 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 ------------------------------------------------------------------------------------------------------------------------------------ 16838( 4) - 28-Jul-2022 13:35:43 - [ 5] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 6 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-UVIS Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 23.02 Line_Spacing 35.212 Coordinate_Frame POS-TARG Pattern_Orient 0.713 Angle_Between_Sides 89.287 Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ 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 .0725 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 Pattern_Comments: 8 pt dither, with 2 PT offset of 1.25 pixels ------------------------------------------------------------------------------------------------------------------------------------ 16838( 4) - 28-Jul-2022 13:35:43 - [ 6] Visit: 01 (Test 1) Visit Requirements: ON HOLD On Hold Comments: ToO 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 LATGRB WFC3/IR MULTIAC IR-UVIS F160W SAMP-SEQ=STEP50, NSAMP=10 1 DEF PATTERN 4 1 CUM (747.696 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 LATGRB WFC3/UVI ACCUM UVIS2 F606W FLASH=12 1 250 S (500 PATTERN 3 2 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 1 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 1 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 7] Visit: 02 (Test 2) Visit Requirements: ON HOLD On Hold Comments: ToO 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 LATGRB WFC3/IR MULTIAC IR-UVIS F160W SAMP-SEQ=STEP100, NSAMP=12 1 DEF PATTERN 5 1 CUM (2396.929 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 LATGRB WFC3/UVI ACCUM UVIS2 F606W 1 550 S PATTERN 2 2 S (2200 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 | ------------------------------------------------------------------------------------------------------------------------------------ LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 4 none none none 1 N/A CUM LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 2 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 8] Visit: 03 (Test 3) Visit Requirements: ON HOLD On Hold Comments: ToO 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 LATGRB WFC3/IR MULTIAC IR-UVIS F160W SAMP-SEQ=STEP100, NSAMP=12 1 DEF PATTERN 6 1 CUM (2396.929 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 LATGRB WFC3/UVI ACCUM UVIS2 F606W 1 550 S PATTERN 2 2 S (2200 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 | ------------------------------------------------------------------------------------------------------------------------------------ LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 4 none none none 1 N/A CUM LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 2 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 9] Visit: 04 (Test 4) Visit Requirements: ON HOLD On Hold Comments: ToO 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 LATGRB WFC3/IR MULTIAC IR-UVIS F160W SAMP-SEQ=STEP100, NSAMP=12 1 DEF PATTERN 6 1 CUM (2396.929 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 LATGRB WFC3/UVI ACCUM UVIS2 F606W 1 550 S PATTERN 2 2 S (2200 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 | ------------------------------------------------------------------------------------------------------------------------------------ LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 1 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 2 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 3 none none none 1 N/A CUM LATGRB 1 WFC3/IR MULTIAC IR-UVIS F160W 4 none none none 1 N/A CUM LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 2 N/A S LATGRB 2 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 2 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 10] Visit: A1 (First Epoch Optical) Visit Requirements: BETWEEN 07-FEB-2022:00:00:00 AND 10-FEB-2022:00:00:00 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-220101A WFC3/UVI ACCUM UVIS2 F775W FLASH=6 1 580 S POS TARG 40, -25; S (2320 S) PATTERN 2 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-220101A 1 WFC3/UVI ACCUM UVIS2 F775W 1 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS2 F775W 2 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS2 F775W 3 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS2 F775W 4 none none none 1 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 11] Visit: A2 (First Epoch IR) Visit Requirements: AFTER A1 BY 0 D TO 2 D; GROUP A2, A1 WITHIN 2D 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-220101A WFC3/IR MULTIAC IR F125W SAMP-SEQ=STEP100, NSAMP=12 1 DEF PATTERN 5 1 CUM (2396.929 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-220101A 1 WFC3/IR MULTIAC IR F125W 1 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 2 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 3 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 4 none none none 1 N/A CUM 16838( 4) - 28-Jul-2022 13:35:43 - [ 12] Visit: A3 (Second Epoch Optical) Visit Requirements: ORIENT 225.95D TO 225.95 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-220101A WFC3/UVI ACCUM UVIS1 F775W FLASH=7 1 550 S POS TARG -40, 25; S (2200 S) PATTERN 2 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-220101A 1 WFC3/UVI ACCUM UVIS1 F775W 1 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS1 F775W 2 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS1 F775W 3 none none none 1 N/A S GRB-220101A 1 WFC3/UVI ACCUM UVIS1 F775W 4 none none none 1 N/A S 16838( 4) - 28-Jul-2022 13:35:43 - [ 13] Visit: A4 (Second Epoch IR) Visit Requirements: ORIENT 225.93D TO 225.93 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-220101A WFC3/IR MULTIAC IR F125W SAMP-SEQ=STEP100, NSAMP=12 1 DEF PATTERN 5 1 CUM (2396.929 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-220101A 1 WFC3/IR MULTIAC IR F125W 1 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 2 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 3 none none none 1 N/A CUM GRB-220101A 1 WFC3/IR MULTIAC IR F125W 4 none none none 1 N/A CUM 16838( 4) - 28-Jul-2022 13:35:43 - [ 14] Summary Form for Proposal 16838 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, IR-UVIS, UVIS1, UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=12, FLASH=6, FLASH=7, NSAMP=10, NSAMP=12, SAMP-SEQ=STEP100, SAMP-SEQ=STEP50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER A1 BY 0 D TO 2 D, BETWEEN 07-FEB-2022:00:00:00 AND 10-FEB-2022:00:00:00, GROUP A2, A1 WITHIN 2D, ON HOLD , ORIENT 225.93D TO 225.93 D, ORIENT 225.95D TO 225.95 D, PATTERN 2 1, PATTERN 2 2, PATTERN 3 2, PATTERN 4 1, PATTERN 5 1, PATTERN 6 1, POS TARG -40, 25, POS TARG 40, -25 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F125W, F160W, F606W, F775W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB-220101A, LATGRB ------------------------------------------------------------------------------------------------------------------------------------