14270( 5) - 02-Oct-2017 12:20:18 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14270 Version: 5 Check-in Time: 02-Oct-2017 12:20:18 STScI Edit Number: 0 Title The late time behaviour and environments of the first gravitational wave transients ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Andrew James Levan The University of Warwick Y CoI: Prof. Nial Rahil Tanvir University of Leicester N CoI: Dr. Danny Steeghs The University of Warwick N CoI: Dr. Darren J. White The University of Warwick N CoI: Dr. Andrew S. Fruchter Space Telescope Science Institute N CoI: Prof. Stephan Rosswog Stockholm University N CoI: Dr. Elena Pian INAF, Istituto di Fisica Spaziale e Fisica N Cosmica-Bologna CoI: Dr. Antonio de Ugarte Postigo Instituto de Astrofisica de Andalucia N (IAA) CoI: Dr. Joseph Lyman The University of Warwick N CoI: Dr. Klaas Wiersema University of Leicester N CoI: Dr. Julian P. Osborne University of Leicester N CoI: Dr. Ilya Mandel University of Birmingham N CoI: Dr. Eliana Palazzi INAF, Istituto di Fisica Spaziale e Fisica N Cosmica-Bologna CoI: Prof. Jens Hjorth University of Copenhagen, Niels Bohr N Institute CoI: Dr. Jochen Greiner Max-Planck-Institut fur extraterrestrische N Physik CoI: Dr. Zach Cano University of Iceland N CoI: Dr. Steve Schulze Pontificia Universidad Catolica de Chile N CoI: Dr. Darach Watson University of Copenhagen, Niels Bohr N Institute CoI: Dr. Rebekah Hounsell University of California - Santa Cruz N CoI: Dr. Daniel Perley Liverpool John Moores University N CoI: Dr. Patrick Sutton University of Wales, College of Cardiff N (UWCC) CoI: Dr. Phillip A. Evans University of Leicester N CoI: Dr. Paul Thomas O'Brien University of Leicester N ------------------------------------------------------------------------------------ Abstract The next generation of gravitational wave (GW) detectors (Advanced LIGO and VIRGO) will go into scientific operation at the end of 2015. These detectors will finally herald an era where routine detection of gravitational waves from the merger of compact object binaries at 100-400 Mpc is possible, ending the century long quest for their direct detection. However, GW alone provides only part of the picture, and comprehensive electromagnetic observations will also be undertaken. Here we propose to utilize the unique ability of HST to go deep and with extremely high resolution in order to track the late time evolution of the counterparts, and charaterise their environments in detail. These observations will in turn enable us to reconstruct the parameters of the explosions, pinpoint the birth sites, and hone our observations 14270( 5) - 02-Oct-2017 12:20:18 - [ 2] for future, more ambitious programmes of observations. ------------------------------------------------------------------------------------ Observations Description ------------------------ Our aim is to map the late time emission and environments of the first gravitational wave sources, that will become detectable with Advanced-LIGO/VIRGO. We will target electromagnetic counterparts that may be identified via a variety of routes, and will trigger HST observations once the transients are established as promising counterparts for the GW source. This might include (but is no exhasutive), simultaneous gamma-ray detections, location of kilonova like transients in GW error boxes, or unusual SNe. Once identified we will trigger 4 visits of observations spaced over a period of ~6 months. Each visit will be identicial and consist of half an orbit of WFC3/UVIS F606W and half an orbit of WFC3/IR F140W. These will track the late time behaviour of the transient beyond the point that it is detectable from the ground, and will provide the best constraints on the environment. ------------------------------------------------------------------------------------ 14270( 5) - 02-Oct-2017 12:20:18 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 ATLAS17AEU GALAXY, HIGH REDSHIFT RA=09H13M13.8900S, J2000 V = 26 +/- 1 GALAXY DEC=+61D05'33.60" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB170817A GALAXY, UNDESIGNATED RA=13H09M48.0800S, J2000 V = 16 +/- 1 DEC=-23D22'53.20" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 14270( 5) - 02-Oct-2017 12:20:18 - [ 4] TARGET LIST Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ 1 GW1 UNIDENTIFIED, OTHER: COUNTERPART TO GW EMITTER V = 25 +/- 5 UNDESIGNATED ------------------------------------------------------------------------------------------------------------------------------------ 14270( 5) - 02-Oct-2017 12:20:18 - [ 5] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.145 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.636 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 41.788 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 4 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.636 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-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 ------------------------------------------------------------------------------------------------------------------------------------ 14270( 5) - 02-Oct-2017 12:20:18 - [ 6] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 6 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 ------------------------------------------------------------------------------------------------------------------------------------ 14270( 5) - 02-Oct-2017 12:20:18 - [ 7] Visit: 03 Visit Requirements: SCHED 100%; BEFORE 10-DEC-2017:00:00:00; ON HOLD On Hold Comments: Awaiting GW trigger 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 GRB170817A WFC3/UVI ACCUM UVIS2 F606W CR-SPLIT=NO 1 365 S PATTERN 5 1 S see below (2264 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB170817A 1 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 1 566.0 S S GRB170817A 1 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 1 566.0 S S GRB170817A 1 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 1 566.0 S S GRB170817A 1 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 1 566.0 S S 14270( 5) - 02-Oct-2017 12:20:18 - [ 8] Visit: 04 Visit Requirements: SCHED 100%; BEFORE 10-DEC-2017:00:00:00 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 GRB170817A WFC3/IR MULTIAC IR F160W NSAMP=12, SAMP-SEQ=STEP100 1 DEF PATTERN 6 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB170817A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB170817A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB170817A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB170817A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 14270( 5) - 02-Oct-2017 12:20:18 - [ 9] Visit: AA Visit Requirements: GROUP AA, AB WITHIN 14D 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 ATLAS17AEU WFC3/UVI ACCUM UVIS2 F606W CR-SPLIT=NO 1 365 S POS TARG -40, -10; S (1460 S) PATTERN 5 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ATLAS17AEU WFC3/IR MULTIAC IR F140W NSAMP=11, SAMP-SEQ=SPARS50 1 DEF PATTERN 4 2 CUM (1005.874 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 | ------------------------------------------------------------------------------------------------------------------------------------ ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F606W 1 none none none 1 N/A S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F606W 2 none none none 1 N/A S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F606W 3 none none none 1 N/A S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F606W 4 none none none 1 N/A S ATLAS17AEU 2 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM ATLAS17AEU 2 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM 14270( 5) - 02-Oct-2017 12:20:18 - [ 10] Visit: AB 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 ATLAS17AEU WFC3/UVI ACCUM UVIS2 F390W CR-SPLIT=NO, FLASH=7 1 365 S POS TARG -40, -10; S see below PATTERN 5 1 (2736 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 | ------------------------------------------------------------------------------------------------------------------------------------ ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F390W 1 none none none 1 684.0 S S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F390W 2 none none none 1 684.0 S S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F390W 3 none none none 1 684.0 S S ATLAS17AEU 1 WFC3/UVI ACCUM UVIS2 F390W 4 none none none 1 684.0 S S 14270( 5) - 02-Oct-2017 12:20:18 - [ 11] Summary Form for Proposal 14270 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, UVIS2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO, FLASH=7, NSAMP=11, NSAMP=12, SAMP-SEQ=SPARS50, SAMP-SEQ=STEP100 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BEFORE 10-DEC-2017:00:00:00, GROUP AA, AB WITHIN 14D, ON HOLD , PATTERN 4 2, PATTERN 5 1, PATTERN 6 1, POS TARG -40, -10, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F140W, F160W, F390W, F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names ATLAS17AEU, GRB170817A ------------------------------------------------------------------------------------------------------------------------------------