14890( 2) - 19-Dec-2016 16:14:51 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14890 Version: 2 Check-in Time: 19-Dec-2016 16:14:51 STScI Edit Number: 0 Title Solving the enigma of Fast Radio Burst 121102 ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Shriharsh Tendulkar McGill University Y CoI: Mr. Paul Scholz McGill University N CoI: Dr. Victoria M. Kaspi McGill University N CoI: Dr. Bryan Butler Associated Universities, Inc. N CoI: Dr. Jason Hessels Stichting Astronomisch Onderzoek in N Nederland (ASTRON) CoI: Dr. Cees G. Bassa Stichting Astronomisch Onderzoek in N Nederland (ASTRON) CoI: Dr. James M. Cordes Cornell University N CoI: Dr. Scott M. Ransom Associated Universities, Inc. N CoI: Dr. Casey J Law University of California - Berkeley N CoI: Robert Wharton Cornell University N CoI: Dr. Shami Chatterjee Cornell University N CoI: Prof. Maura A. McLaughlin West Virginia University N CoI: Dr. Geoffrey Bower Academia Sinica, Institute of Astronomy N and Astrophysics CoI: Dr. Andrew Seymour Universities Space Research Association N CoI: Dr. Sarah Burke-Spolaor Associated Universities, Inc. N CoI: Dr. Laura Spitler Max-Planck-Institut fur Radioastronomie N CoI: Dr. Paul Demorest Associated Universities, Inc. N CoI: Mr. Matthew W Abruzzo Haverford College N ------------------------------------------------------------------------------------ Abstract FRB 121102 is the only known repeating source in the class of mysterious phenomena known as Fast Radio Bursts (FRBs). Through our very recent VLA campaign, we have a direct sub-arcsecond localization of FRB 121102, the first for any FRB. At the location of the burst, VLA and EVN observations show a potentially variable radio point source and archival Keck imaging shows a faint (R = 24.5 mag), possibly extended object. This is an unprecedented opportunity to learn about the yet unknown origins of FRBs, their distance scales, and host properties. We are requesting a two and a half orbit HST/WFC3 imaging observation that will enable us to discriminate the host type (a redshifted spiral or elliptical galaxy or an underluminous AGN) and the location of the burst within the host (nuclear or offset), with critically different implications for the underlying source class. While we are pursuing follow-up multi-wavelength imaging and ground-based spectroscopy, no other facility, ground-based or otherwise, can provide the host morphology information that we can get with HST imaging. ------------------------------------------------------------------------------------ Observations Description ------------------------ The aim of this observation is to study the spatial structure in a dwarf galaxy 14890( 2) - 19-Dec-2016 16:14:51 - [ 2] hosting FRB 121102. ------------------------------------------------------------------------------------ 14890( 2) - 19-Dec-2016 16:14:51 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 FRB-121102 GALAXY, DWARF COMPACT RA=05H31M59.0400S, J2000 V = 25 DEC=+33D08'54.40" Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 14890( 2) - 19-Dec-2016 16:14:51 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 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: 4 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-GAP-LINE WFC3-UVIS-DITHER-LINE Pattern_Purpose MOSAIC DITHER Number_Of_Points 2 2 Point_Spacing 2.414 0.145 Line_Spacing Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 85.759 46.84 Angle_Between_Sides Center_Pattern NO NO ------------------------------------------------------------------------------------------------------------------------------------ 14890( 2) - 19-Dec-2016 16:14:51 - [ 5] Visit: 01 (Visit) Visit Requirements: On Hold Comments: Additional Comments: WFC3/IR (1 orbit) + WFC3/UVIS (2 orbits) 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 FRB-121102 WFC3/IR MULTIAC IR F160W NSAMP=11, SAMP-SEQ=STEP50 1 DEF PATTERN 1 1-2 CUM (1196.93 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 FRB-121102 WFC3/IR MULTIAC IR F110W SAMP-SEQ=STEP50, NSAMP=14 1 DEF CUM (1796.935 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 FRB-121102 WFC3/UVI ACCUM UVIS F763M FLASH=7 1 470 S PATTERN 4 3-4 S see below (1940 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 FRB-121102 WFC3/UVI ACCUM UVIS F845M FLASH=8 1 480 S S see below (2560 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 | ------------------------------------------------------------------------------------------------------------------------------------ FRB-121102 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM FRB-121102 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM FRB-121102 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM FRB-121102 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM FRB-121102 2 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM FRB-121102 2 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM FRB-121102 2 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM FRB-121102 2 WFC3/IR MULTIAC IR F110W 4 none none none 2 N/A CUM FRB-121102 3 WFC3/UVI ACCUM UVIS F763M 1 1 none none 2 497.0 S S FRB-121102 3 WFC3/UVI ACCUM UVIS F763M 1 2 none none 2 497.0 S S 14890( 2) - 19-Dec-2016 16:14:51 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ FRB-121102 3 WFC3/UVI ACCUM UVIS F763M 2 1 none none 3 473.0 S S FRB-121102 3 WFC3/UVI ACCUM UVIS F763M 2 2 none none 3 473.0 S S FRB-121102 4 WFC3/UVI ACCUM UVIS F845M 1 1 none none 2 480.0 S S FRB-121102 4 WFC3/UVI ACCUM UVIS F845M 1 2 none none 2 480.0 S S FRB-121102 4 WFC3/UVI ACCUM UVIS F845M 2 1 none none 3 800.0 S S FRB-121102 4 WFC3/UVI ACCUM UVIS F845M 2 2 none none 3 800.0 S S 14890( 2) - 19-Dec-2016 16:14:51 - [ 7] Summary Form for Proposal 14890 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=7, FLASH=8, NSAMP=11, NSAMP=14, SAMP-SEQ=STEP50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1-2, PATTERN 4 3-4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F160W, F763M, F845M ------------------------------------------------------------------------------------------------------------------------------------ Target Names FRB-121102 ------------------------------------------------------------------------------------------------------------------------------------