15979( 2) - 25-Jul-2019 11:46:09 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15979 Version: 2 Check-in Time: 25-Jul-2019 11:46:09 STScI Edit Number: 0 Title Unpicking the exceptional properties of the first TeV emitting gamma-ray burst ------------------------------------------------------------------------------------ Type Cycle GO 27 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Andrew James Levan Radboud Universiteit Nijmegen Y CoI: Prof. Nial Rahil Tanvir University of Leicester N CoI: Prof. Ralph A.M.J. Wijers Universiteit van Amsterdam N CoI: Dr. Jonatan Selsing University of Copenhagen, Niels Bohr N Institute CoI: Mr. Kasper Elm Heintz University of Iceland N CoI: Dr. Darach Watson University of Copenhagen, Niels Bohr N Institute CoI: Prof. Johan P. U. Fynbo University of Copenhagen, Niels Bohr N Institute CoI: Dr. Palle Moller European Southern Observatory - Germany N CoI: Dr. Christina Thoene Instituto de Astrofisica de Andalucia N (IAA) CoI: Dr. Antonio de Ugarte Postigo Instituto de Astrofisica de Andalucia N (IAA) CoI: Dr. Valerio D'Elia INAF, Osservatorio Astronomico di Roma N CoI: Dr. Massimo Della Valle INAF, Osservatorio Astronomico di N Capodimonte CoI: Prof. Dieter Hartmann Clemson University N CoI: Dr. Klaas Wiersema The University of Warwick N CoI: Dr. C. Kouveliotou George Washington University N CoI: Dr. Steve Schulze Weizmann Institute of Science N CoI: Dr. David Kann Thuringer Landessternwarte Tautenburg N (TLS) CoI: Dr. Susanna Vergani Observatoire de Paris - Section de Meudon N CoI: Dr. Daniele Bjorn Malesani University of Copenhagen, Niels Bohr N Institute CoI: Dr. Dong Xu University of Copenhagen, Niels Bohr N Institute CoI: Dr. Bo Milvang-Jensen University of Copenhagen, Niels Bohr N Institute CoI: Dr. Andrea Rossi INAF, Osservatorio di Astrofisica e N Scienza dello Spazio di B CoI: Dr. Gianpiero Tagliaferri INAF, Osservatorio Astronomico di Brera, N Merate CoI: Rhaana L.C. Starling University of Leicester N CoI: Dr. Sergio Campana INAF, Osservatorio Astronomico di Brera, N Merate CoI: Dr. Luca Izzo Instituto de Astrofisica de Andalucia N (IAA) CoI: Mr. Jan Bolmer European Southern Observatory - Germany N CoI: Dr. Andrew S. Fruchter Space Telescope Science Institute N CoI: Dr. Giovanna Pugliese Universiteit van Amsterdam N 15979( 2) - 25-Jul-2019 11:46:09 - [ 2] CoI: Prof. Jens Hjorth University of Copenhagen, Niels Bohr N Institute CoI: Dr. Gavin Lamb University of Leicester N CoI: Dr. Tanmoy Laskar University of Bath N CoI: Dr. Daniel Perley Liverpool John Moores University N CoI: Dr. Pall Jakobsson University of Iceland N CoI: Dr. Boris Sbarufatti The Pennsylvania State University N CoI: Dr. Patricia Schady University of Bath N CoI: Dr. Paolo Goldoni Commissariat a l'Energie Atomique (CEA) N CoI: Jure Japelj Universiteit van Amsterdam N CoI: Dr. Ruben Salvaterra INAF, Instituto di Astrofisica Spaziale e N Fisica, Milano CoI: Dr. Alexander Van der Horst George Washington University N CoI: Tuomas Kangas Space Telescope Science Institute N CoI: Prof. Paul Groot Radboud Universiteit Nijmegen N CoI: Dr. Peter Gustaaf Jonker Space Research Organization Netherlands N ------------------------------------------------------------------------------------ Abstract Several thousand gamma-ray bursts (GRBs) have now been detected, lasting from a fraction of a second to several hours, and with spectral energies peaking in the hundreds of keV range. A handful of bursts have been detected at GeV energies, but very recently GRB 190114C became the first GRB to be identified in the TeV regime via the detection of a flash of Chernkov light by the MAGIC telescope. This detection offers a new window on the GRB phenomena, probing the generation of these extreme photons, as well as a route to testing the scattering of such photons off the Extragalactic Background Light (EBL). The environment of the burst is also exceptional, being extremely dense and perhaps indicating a link between the very high energy emisison and environment, as suggested by some models. Our proposed HST observaitons will track the late time behaviour of the counterpart, disentangle the supernova, afterglow and host emission and determine if the physics of this unique burst differs from that seen in other examples. The observations will also characterise the environment in emission, dissecting it at higher resolution than possible from the ground and tying the emission to absorption properties. Finally, the observations will measure the optical photon density close to the GRB itself (i.e. in the host), and hence the contribution of these photons to the scattering of very high energy light (i.e. the total of local to the burst + EBL). This in turn will enable the determination of the true energetics of the burst at TeV energies and test scattering models in the EBL, both key questions in high energy astrophysics and cosmology. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will obain a series of observations of GRB 190114C in the F606W, F775W, F850LP, F110W and F160W filters. Each of these exposures will use a standard 3-point dither. We will place the WFC observations close to the edge of the chip using the CTE aperture in order to mitigate CTE effects, and will use the standard IR aperture for infrared observations. The purpose of these observations is to measure the long term decay of the counterpart of GRB 190114C, in tandem with earlier observations. This final epoch will be used for the purposes of host galaxy subtraction. 15979( 2) - 25-Jul-2019 11:46:09 - [ 3] ------------------------------------------------------------------------------------ 15979( 2) - 25-Jul-2019 11:46:09 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB190114C EXT-STAR, GAMMA RAY RA=03H38M1.1600S, J2000 V = 22 +/- 2 BURSTER DEC=-26D56'46.90" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15979( 2) - 25-Jul-2019 11:46:09 - [ 5] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 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: 3 Primary_Pattern Secondary_Pattern Pattern_Type LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.604 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 41.788 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 15979( 2) - 25-Jul-2019 11:46:09 - [ 6] Visit: 01 Visit Requirements: SCHED 100%; BETWEEN 01-JAN-2020:00:00:00 AND 28-FEB-2020:00:00:00 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 GRB190114C WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 1-2 CUM (1058.806 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB190114C WFC3/IR MULTIAC IR F160W NSAMP=9, SAMP-SEQ=SPARS50 1 DEF CUM (1208.808 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB190114C 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM GRB190114C 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM GRB190114C 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM GRB190114C 2 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB190114C 2 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB190114C 2 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM 15979( 2) - 25-Jul-2019 11:46:09 - [ 7] Visit: 02 Visit Requirements: SCHED 100%; GROUP 02, 01 WITHIN 10D 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 GRB190114C ACS/WFC ACCUM WFC1-CTE F606W 1 400 S PATTERN 3 1-3 see below (1386 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB190114C ACS/WFC ACCUM WFC1-CTE F775W 1 337 S see below (1104 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB190114C ACS/WFC ACCUM WFC1-CTE F850LP 1 337 S see below (1104 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB190114C 1 ACS/WFC ACCUM WFC1-CTE F606W 1 none none none 1 493.0 S GRB190114C 1 ACS/WFC ACCUM WFC1-CTE F606W 2 none none none 1 493.0 S GRB190114C 1 ACS/WFC ACCUM WFC1-CTE F606W 3 none none none 2 N/A GRB190114C 2 ACS/WFC ACCUM WFC1-CTE F775W 1 none none none 1 430.0 S GRB190114C 2 ACS/WFC ACCUM WFC1-CTE F775W 2 none none none 2 N/A GRB190114C 2 ACS/WFC ACCUM WFC1-CTE F775W 3 none none none 2 N/A GRB190114C 3 ACS/WFC ACCUM WFC1-CTE F850LP 1 none none none 1 430.0 S GRB190114C 3 ACS/WFC ACCUM WFC1-CTE F850LP 2 none none none 2 N/A GRB190114C 3 ACS/WFC ACCUM WFC1-CTE F850LP 3 none none none 2 N/A 15979( 2) - 25-Jul-2019 11:46:09 - [ 8] Summary Form for Proposal 15979 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, WFC1-CTE ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=8, NSAMP=9, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-JAN-2020:00:00:00 AND 28-FEB-2020:00:00:00, GROUP 02, 01 WITHIN 10D, PATTERN 1 1-2, PATTERN 3 1-3, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F160W, F606W, F775W, F850LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB190114C ------------------------------------------------------------------------------------------------------------------------------------