16072( 3) - 17-Mar-2020 15:28:10 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16072 Version: 3 Check-in Time: 17-Mar-2020 15:28:10 STScI Edit Number: 0 Title Constraining the local environment and possible binarity of the closest-known Fast Radio Burst source ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Shriharsh Tendulkar McGill University Y CoI: Dr. Cees G. Bassa Stichting Astronomisch Onderzoek in N Nederland (ASTRON) CoI: Dr. Jason Hessels Stichting Astronomisch Onderzoek in N Nederland (ASTRON) CoI: Dr. Victoria M. Kaspi McGill University N CoI: Mr. Paul Scholz McGill University N CoI: Prof. Kiyoshi Masui Massachusetts Institute of Technology N CoI: Kenzie Nimmo Universiteit van Amsterdam N CoI: Ms. Aida Kirichenko Ioffe Physical Technical Institute N CoI: Dr. Emmanuel Fonseca McGill University N CoI: Mr. Mohit Bhardwaj McGill University N ------------------------------------------------------------------------------------ Abstract Fast Radio Bursts (FRBs) are millisecond-timescale radio transients that originate at cosmological distances. The origins of FRBs are unknown, though a plethora of models invoking sources from young magnetars to binary neutron star mergers have been proposed. The environments in which these FRBs originate, the local stellar population age, metallicity, and star-formation rate can constrain the origins of FRBs. Some FRBs have been observed to repeat, though it is not clear whether the as-yet-single bursts are a different population or whether their faint repeat bursts simply have not been detected yet. There are six FRBs that have been localized with sufficient precision to identify their host galaxies in very diverse local environments, most at distances >1 Gpc. A second repeating FRB 180916 has been localized to a nearby face-on spiral galaxy at a distance of 149 Mpc, providing an opportunity to set the best constraints on the immediate environment of an FRB source. Separately, a 16.35-day periodicity has been discovered in the burst activity of FRB 180916 --- a momentous discovery for our understanding of FRBs. A modulation induced by orbital motion could feasibly explain such a period. The proposed observations are sufficiently sensitive to detect a single O3V (or brighter) star at the location of the FRB and measure the local star-formation rate with a precision of 0.01 MSun/year. These observations, along with previously acquired ground-based integral field spectroscopy will allow us to study the hyper-local environment of FRB 180916, its chemical composition, and dynamics, leading to the most detailed dataset to constrain the models for FRB emission. ------------------------------------------------------------------------------------ Observations Description ------------------------ The aim of this observation is to acquire deep optical and IR imaging of the galaxy to search for stellar clusters or OB associations at the location of the FRB. The deep imaging will be done in the F110W filter (IR) and the Halpha 16072( 3) - 17-Mar-2020 15:28:10 - [ 2] On/Off imaging (to constrain local star formation rate) will be done in the F673N and F657N filters (UVIS). The host galaxy itself is about 10" in size and the region surrounding it (~20" radius) is of interest to search for satellite galaxies or any morphological signs of interaction. Apart from these constraints, the orientation, observation epoch etc are not critical. ------------------------------------------------------------------------------------ 16072( 3) - 17-Mar-2020 15:28:10 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ015800. GALAXY, SPIRAL RA=01H58M0.2800S, J2000 V = 18 28+654253.0 DEC=+65D42'53.00" Reference Frame: Other: Marcote et al 2020 ------------------------------------------------------------------------------------------------------------------------------------ 16072( 3) - 17-Mar-2020 15:28:10 - [ 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: 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 ------------------------------------------------------------------------------------------------------------------------------------ 16072( 3) - 17-Mar-2020 15:28:10 - [ 5] Visit: 01 (Halpha ON) Visit Requirements: On Hold Comments: Additional Comments: One visit for Halpha ON imaging (F673N) 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 SDSSJ015800 WFC3/UVI ACCUM UVIS1 F673N FLASH=9 1 900 S PATTERN 3 1 .28+654253. S see below 0 (2877 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F673N 1 none none none 1 959.0 S 53.0 S SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F673N 2 none none none 1 959.0 S 53.0 S SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F673N 3 none none none 1 959.0 S 53.0 S 16072( 3) - 17-Mar-2020 15:28:10 - [ 6] Visit: 02 (Halpha OFF) Visit Requirements: On Hold Comments: Additional Comments: One visit for Halpha OFF (F657N) 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 SDSSJ015800 WFC3/UVI ACCUM UVIS1 F657N FLASH=9 1 900 S PATTERN 3 1 .28+654253. S see below 0 (2877 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F657N 1 none none none 1 959.0 S 53.0 S SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F657N 2 none none none 1 959.0 S 53.0 S SDSSJ015800.28+6542 1 WFC3/UVI ACCUM UVIS1 F657N 3 none none none 1 959.0 S 53.0 S 16072( 3) - 17-Mar-2020 15:28:10 - [ 7] Visit: 03 (Deep IR imaging) Visit Requirements: On Hold Comments: Additional Comments: Two orbits for deep F110W imaging 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 SDSSJ015800 WFC3/IR MULTIAC IR F110W SAMP-SEQ=SPARS25, NSAMP=7 1 DEF .28+654253. CUM (152.935 0 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ015800 WFC3/IR MULTIAC IR F110W SAMP-SEQ=SPARS50, NSAMP=15 2 DEF PATTERN 1 2 .28+654253. CUM (5623.509 0 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ015800 WFC3/IR MULTIAC IR F110W SAMP-SEQ=SPARS25, NSAMP=7 1 DEF .28+654253. CUM (152.935 0 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 | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ015800.28+6542 1 WFC3/IR MULTIAC IR F110W none none none none 1 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 1 none 1 none 1 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 1 none 2 none 1 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 2 none 1 none 1 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 2 none 2 none 1 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 3 none 1 none 2 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 3 none 2 none 2 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 4 none 1 none 2 N/A 53.0 CUM SDSSJ015800.28+6542 2 WFC3/IR MULTIAC IR F110W 4 none 2 none 2 N/A 53.0 CUM SDSSJ015800.28+6542 3 WFC3/IR MULTIAC IR F110W none none none none 2 N/A 53.0 CUM 16072( 3) - 17-Mar-2020 15:28:10 - [ 8] Summary Form for Proposal 16072 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, UVIS1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=9, NSAMP=15, NSAMP=7, SAMP-SEQ=SPARS25, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 2, PATTERN 3 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F657N, F673N ------------------------------------------------------------------------------------------------------------------------------------ Target Names SDSSJ015800.28+654253.0 ------------------------------------------------------------------------------------------------------------------------------------