11343( 7) - 27-Aug-2009 15:07:49 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11343 Version: 7 Check-in Time: 27-Aug-2009 15:07:49 STScI Edit Number: 1 Title Identifying the host galaxies for optically dark gamma-ray bursts ------------------------------------------------------------------------------------ Type Cycle GO 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Andrew J. Levan The University of Warwick CoI: Dr. Nial R. Tanvir University of Leicester N CoI: Dr. Jens Hjorth University of Copenhagen, Niels Bohr N Institute CoI: Dr. Peter Wheatley University of Leicester N CoI: Dr. Darach Watson University of Copenhagen, Niels Bohr N Institute CoI: Dr. Pall Jakobsson University of Hertfordshire N CoI: Dr. Robert S. Priddey University of Hertfordshire N CoI: Dr. Paul T. O'Brien University of Leicester N ------------------------------------------------------------------------------------ Abstract We propose to use the high spatial resolution capabilities of Chandra to obtain precise positions for a sample of Gamma-ray bursts (GRBs) with no optical afterglows, where the optical light is supresssed relative to the X-ray flux. These bursts are likely to be highly obscured and may have different environments from the optically bright GRBs. Our Chandra observations will (unlike Swift-XRT positions) allow for the unique identification of a host galaxy. To locate these host galaxies we will follow up our Chandra positions with deep optical and IR observations with HST. The ultimate aim is to understand any differences between the host galaxies of optically dark and bright GRBs, and how these affect the use of GRBs as tracers of starformation and galaxy evolution at high redshift. ------------------------------------------------------------------------------------ Observations Description ------------------------ We propose to observe a sample of dark GRB host galaxies for bursts discovered by Swift, and subsequently located to sub-arcsecond accuracy via Chandra observations. In each case we will map the SED to provide constraints on photometric redshift and stellar population, as well as morphological information. We utillize both 4 and 6 point dithers (4 for one orbit WFPC2 observations and 6 for two orbits). Real Time Justification ----------------------- Calibration Justification ------------------------- 11343( 7) - 27-Aug-2009 15:07:49 - [ 2] Additional Comments ------------------- ------------------------------------------------------------------------------------ 11343( 7) - 27-Aug-2009 15:07:49 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB080207 GALAXY, HIGH REDSHIFT RA=13H50M2.9700S +/- 1", J2000 V = 25 +/- 1 GALAXY DEC=+07D30'7.70" +/- 1" Reference Frame: Other: Chandra/Swift Comments: This is a new position, now available from Chandra observations ------------------------------------------------------------------------------------------------------------------------------------ 7 GRB051022-HO GALAXY, HIGH REDSHIFT RA=23H56M4.1000S +/- 0.1", J2000 R-Magnitude: 22.0 +/- 1 ST-GALAXY GALAXY DEC=+19D36'24.10" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11343( 7) - 27-Aug-2009 15:07:49 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 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 143.1301 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.265 Line_Spacing 0.187 Coordinate_Frame POS-TARG Pattern_Orient 20.67 Angle_Between_Sides 69.05 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 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 ------------------------------------------------------------------------------------------------------------------------------------ 11343( 7) - 27-Aug-2009 15:07:49 - [ 5] Visit: A1 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 GRB080207 NIC3 MULTIAC NIC3 F160W NSAMP=12, SAMP-SEQ=SPARS64 1 DEF POS TARG -1.426, -1.421 CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080207 NIC3 MULTIAC NIC3 F160W NSAMP=12, SAMP-SEQ=SPARS64 1 DEF POS TARG -1.426, 1.523 CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB080207 NIC3 MULTIAC NIC3 F160W NSAMP=12, SAMP-SEQ=SPARS64 1 DEF POS TARG 1.528, -1.421 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB080207 NIC3 MULTIAC NIC3 F160W NSAMP=12, SAMP-SEQ=SPARS64 1 DEF POS TARG 1.528, 1.523 CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080207 1 NIC3 MULTIAC NIC3 F160W none none none none 1 N/A CUM GRB080207 2 NIC3 MULTIAC NIC3 F160W none none none none 1 N/A CUM GRB080207 3 NIC3 MULTIAC NIC3 F160W none none none none 1 N/A CUM GRB080207 4 NIC3 MULTIAC NIC3 F160W none none none none 1 N/A CUM 11343( 7) - 27-Aug-2009 15:07:49 - [ 6] Visit: A2 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 GRB080207 WFPC2 IMAGE WF3 F606W CR-SPLIT=NO 1 400 S PATTERN 1 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080207 1 WFPC2 IMAGE WF3 F606W 1 none none none 1 N/A GRB080207 1 WFPC2 IMAGE WF3 F606W 2 none none none 1 N/A GRB080207 1 WFPC2 IMAGE WF3 F606W 3 none none none 1 N/A GRB080207 1 WFPC2 IMAGE WF3 F606W 4 none none none 1 N/A 11343( 7) - 27-Aug-2009 15:07:49 - [ 7] Visit: G2 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 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 600 S POS TARG 0, 0 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 500 S POS TARG 0.232, 0.232 see below ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 500 S POS TARG 0.464, 0.464 see below ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 600 S POS TARG 0, 0.249 see below ------------------------------------------------------------------------------------------------------------------------------------ 5 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 500 S POS TARG 0.232, 0.481 see below ------------------------------------------------------------------------------------------------------------------------------------ 6 GRB080207 WFPC2 IMAGE WFALL-FIX F702W CR-SPLIT=NO 1 600 S POS TARG 0.464, 0.713 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080207 1 WFPC2 IMAGE WFALL-FI F702W none none none none 1 600.0 S X GRB080207 2 WFPC2 IMAGE WFALL-FI F702W none none none none 1 600.0 S X GRB080207 3 WFPC2 IMAGE WFALL-FI F702W none none none none 1 600.0 S X GRB080207 4 WFPC2 IMAGE WFALL-FI F702W none none none none 2 600.0 S X GRB080207 5 WFPC2 IMAGE WFALL-FI F702W none none none none 2 600.0 S X GRB080207 6 WFPC2 IMAGE WFALL-FI F702W none none none none 2 600.0 S X 11343( 7) - 27-Aug-2009 15:07:49 - [ 8] Visit: G3 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 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 10 S POS TARG 0, 0 ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 600 S POS TARG 0, 0 ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 500 S POS TARG 0.232, 0.232 ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 500 S POS TARG 0.464, 0.464 ------------------------------------------------------------------------------------------------------------------------------------ 5 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 10 S POS TARG 0, 0.249 ------------------------------------------------------------------------------------------------------------------------------------ 6 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 600 S POS TARG 0, 0.249 ------------------------------------------------------------------------------------------------------------------------------------ 7 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 500 S POS TARG 0.232, 0.481 ------------------------------------------------------------------------------------------------------------------------------------ 8 GRB080207 WFPC2 IMAGE WFALL-FIX F814W CR-SPLIT=NO 1 600 S POS TARG 0.464, 0.713 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080207 1 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X GRB080207 2 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X GRB080207 3 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X GRB080207 4 WFPC2 IMAGE WFALL-FI F814W none none none none 1 N/A X GRB080207 5 WFPC2 IMAGE WFALL-FI F814W none none none none 2 N/A X GRB080207 6 WFPC2 IMAGE WFALL-FI F814W none none none none 2 N/A X GRB080207 7 WFPC2 IMAGE WFALL-FI F814W none none none none 2 N/A X GRB080207 8 WFPC2 IMAGE WFALL-FI F814W none none none none 2 N/A X 11343( 7) - 27-Aug-2009 15:07:49 - [ 9] Visit: G4 Visit Requirements: GYRO MODE 3GOBAD 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 GRB051022-H ACS/WFC ACCUM WFC1 F606W 1 520 S PATTERN 2 1 OST-GALAXY ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB051022-HOST-GALA 1 ACS/WFC ACCUM WFC1 F606W 1 none none none 1 N/A XY GRB051022-HOST-GALA 1 ACS/WFC ACCUM WFC1 F606W 2 none none none 1 N/A XY GRB051022-HOST-GALA 1 ACS/WFC ACCUM WFC1 F606W 3 none none none 1 N/A XY GRB051022-HOST-GALA 1 ACS/WFC ACCUM WFC1 F606W 4 none none none 1 N/A XY 11343( 7) - 27-Aug-2009 15:07:49 - [ 10] Visit: G5 Visit Requirements: GYRO MODE 3GOBAD 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 GRB051022-H WFC3/IR MULTIAC IR F160W NSAMP=12, SAMP-SEQ=STEP100 1 DEF PATTERN 3 1 OST-GALAXY CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB051022-HOST-GALA 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A XY CUM GRB051022-HOST-GALA 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A XY CUM GRB051022-HOST-GALA 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A XY CUM GRB051022-HOST-GALA 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A XY CUM 11343( 7) - 27-Aug-2009 15:07:49 - [ 11] Visit: G6 Visit Requirements: GYRO MODE 3GOBAD 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 GRB080207 WFC3/IR MULTIAC IR F110W NSAMP=12, SAMP-SEQ=STEP100 1 DEF PATTERN 3 1 CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB080207 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM GRB080207 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM GRB080207 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM GRB080207 1 WFC3/IR MULTIAC IR F110W 4 none none none 1 N/A CUM 11343( 7) - 27-Aug-2009 15:07:49 - [ 12] Summary Form for Proposal 11343 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, NIC3, WF3, WFALL-FIX, WFC1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, NIC3, WFC3/IR, WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, IMAGE, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, NSAMP=12, SAMP-SEQ=SPARS64, SAMP-SEQ=STEP100 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GYRO MODE 3GOBAD, PATTERN 1 1, PATTERN 2 1, PATTERN 3 1, POS TARG -1.426, -1.421, POS TARG -1.426, 1.523, POS TARG 0, 0, POS TARG 0, 0.249, POS TARG 0.232, 0.232, POS TARG 0.232, 0.481, POS TARG 0.464, 0.464, POS TARG 0.464, 0.713, POS TARG 1.528, -1.421, POS TARG 1.528, 1.523 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F160W, F606W, F702W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB051022-HOST-GALAXY, GRB080207 ------------------------------------------------------------------------------------------------------------------------------------