16320( 2) - 30-Jun-2020 14:33:22 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16320 Version: 2 Check-in Time: 30-Jun-2020 14:33:22 STScI Edit Number: 0 Title Do collapsars make the heavy elements: A sensitive search in a nearby gamma-ray burst? ------------------------------------------------------------------------------------ Type Cycle GO 28 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Andrew James Levan Radboud Universiteit Nijmegen Y CoI: Dr. Daniel Perley Liverpool John Moores University N CoI: Dr. Daniele Bjorn Malesani Technical University of Denmark-DTU Space N CoI: Prof. Johan P. U. Fynbo University of Copenhagen, Niels Bohr N Institute CoI: Prof. Nial Rahil Tanvir University of Leicester N CoI: Dr. Gavin Lamb University of Leicester N CoI: Prof. Jens Hjorth University of Copenhagen, Niels Bohr N Institute CoI: Mr. Kasper Elm Heintz University of Iceland N CoI: Dr. Jan Bolmer Max Planck Institute for Extraterrestrial N Physics CoI: Dr. Klaas Wiersema The University of Warwick N CoI: Dr. Benjamin Paul Gompertz The University of Warwick N CoI: Dr. Luca Izzo University of Copenhagen, Niels Bohr N Institute CoI: Dr. Steve Schulze Weizmann Institute of Science N CoI: Dr. Elena Pian INAF, Osservatorio di Astrofisica e N Scienza dello Spazio CoI: Dr. Andrew S. Fruchter Space Telescope Science Institute N CoI: Prof. Brian Metzger Columbia University in the City of New N York CoI: Dr. Jennifer Barnes Columbia University in the City of New N York CoI: Dr. Daniel Siegel Perimeter Institute for Theoretical N Physics CoI: Kornpob Bhirombhakdi Space Telescope Science Institute N CoI: Tuomas Kangas Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract The origin of half of the elements heavier than iron -- the so-called r-process elements -- is a central unsolved mystery in astrophysics. These atoms include both precious metals (e.g. gold) as well as radioactive elements required for geophysical processes on the Earth (e.g. thorium) and even some which are necessary on Earth for advanced life (e.g. iodine). Recent observations with both light and gravitational waves have demonstrated that at least some of these elements are formed through the merger of two neutron stars, but such a population struggles to reproduce the enrichment patterns seen in stars within the Milky Way as well apparent early enrichment in some dwarf galaxies. Instead, recent work implies that the accretion disks formed in the stellar collapse that powers a long duration gamma-ray burst could in-fact be a dominant site. If this is true we should be able to observe r-process synthesis in the associated supernovae. The presence of lanthanides in 16320( 2) - 30-Jun-2020 14:33:22 - [ 2] r-process material creates strong opacity, such that the signature of their synthesis should be a late time infrared component visible in the supernova light. Here we propose sensitive HST observations that will search for both spectroscopic and photometric evidence of the r-process, providing the opportunity to test, for the first time, if collapsars are responsible for heavy element production. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a submission for the final 5 oribits of our programme. The aim is to obtain template images and spectroscopy to subtract from our earlier data. Therefore we have set a stringent roll constraint on the spectroscopic observations so that they match the observations obtained in fall 2019. Otherwise these are a repeat of observations already taken under the for-runner of this programme. ------------------------------------------------------------------------------------ 16320( 2) - 30-Jun-2020 14:33:22 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB190829A UNIDENTIFIED, X-RAY RA=02H58M10.5100S, J2000 V = 22 +/- 2 EMITTER DEC=-08D57'29.30" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 16320( 2) - 30-Jun-2020 14:33:22 - [ 4] 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: 2 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 ------------------------------------------------------------------------------------------------------------------------------------ 16320( 2) - 30-Jun-2020 14:33:22 - [ 5] Visit: 01 Visit Requirements: ORIENT 48.0012D TO 48.0012 D; SEQ 01, 02, 03 WITHIN 7 D 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 GRB190829A WFC3/IR MULTIAC GRISM1024 F125W NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG CUM (349.233 -28.61366496118098, S) -32.61113946018116; GS ACQ SCENARIO BASE1B3; SEQ 1-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -28.61366496118098, S) -32.61113946018116 ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -27.26066496118098, S) -31.402139460181157 ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -25.90766496118098, S) -30.193139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 5 GRB190829A WFC3/IR MULTIAC GRISM1024 F125W NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG CUM (349.233 -28.61366496118098, S) -32.61113946018116; SEQ 5-8 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -27.59666496118098, S) -32.24813946018116 ------------------------------------------------------------------------------------------------------------------------------------ 7 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -26.24366496118098, S) -31.039139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 8 GRB190829A WFC3/IR MULTIAC GRISM1024 G102 NSAMP=12, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (599.232 -24.89066496118098, S) -29.827139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 16320( 2) - 30-Jun-2020 14:33:22 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB190829A 1 WFC3/IR MULTIAC GRISM102 F125W none none none none 1 N/A CUM 4 GRB190829A 2 WFC3/IR MULTIAC GRISM102 G102 none none none none 1 N/A CUM 4 GRB190829A 3 WFC3/IR MULTIAC GRISM102 G102 none none none none 1 N/A CUM 4 GRB190829A 4 WFC3/IR MULTIAC GRISM102 G102 none none none none 1 N/A CUM 4 GRB190829A 5 WFC3/IR MULTIAC GRISM102 F125W none none none none 2 N/A CUM 4 GRB190829A 6 WFC3/IR MULTIAC GRISM102 G102 none none none none 2 N/A CUM 4 GRB190829A 7 WFC3/IR MULTIAC GRISM102 G102 none none none none 2 N/A CUM 4 GRB190829A 8 WFC3/IR MULTIAC GRISM102 G102 none none none none 2 N/A CUM 4 16320( 2) - 30-Jun-2020 14:33:22 - [ 7] Visit: 02 Visit Requirements: SAME ORIENT AS 01 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 GRB190829A WFC3/IR MULTIAC GRISM1024 F140W NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG CUM (349.233 -28.61366496118098, S) -32.61113946018116; GS ACQ SCENARIO BASE1B3; SEQ 1-4 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -28.61366496118098, S) -32.61113946018116 ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -27.26066496118098, S) -31.402139460181157 ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -25.90766496118098, S) -30.193139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 5 GRB190829A WFC3/IR MULTIAC GRISM1024 F140W NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG CUM (349.233 -28.61366496118098, S) -32.61113946018116; SEQ 5-8 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 6 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -27.59666496118098, S) -32.24813946018116 ------------------------------------------------------------------------------------------------------------------------------------ 7 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=13, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (699.233 -26.24366496118098, S) -31.039139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 8 GRB190829A WFC3/IR MULTIAC GRISM1024 G141 NSAMP=12, SAMP-SEQ=STEP100 1 DEF POS TARG CUM (599.232 -24.89066496118098, S) -29.827139460181158 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 16320( 2) - 30-Jun-2020 14:33:22 - [ 8] 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB190829A 1 WFC3/IR MULTIAC GRISM102 F140W none none none none 1 N/A CUM 4 GRB190829A 2 WFC3/IR MULTIAC GRISM102 G141 none none none none 1 N/A CUM 4 GRB190829A 3 WFC3/IR MULTIAC GRISM102 G141 none none none none 1 N/A CUM 4 GRB190829A 4 WFC3/IR MULTIAC GRISM102 G141 none none none none 1 N/A CUM 4 GRB190829A 5 WFC3/IR MULTIAC GRISM102 F140W none none none none 2 N/A CUM 4 GRB190829A 6 WFC3/IR MULTIAC GRISM102 G141 none none none none 2 N/A CUM 4 GRB190829A 7 WFC3/IR MULTIAC GRISM102 G141 none none none none 2 N/A CUM 4 GRB190829A 8 WFC3/IR MULTIAC GRISM102 G141 none none none none 2 N/A CUM 4 16320( 2) - 30-Jun-2020 14:33:22 - [ 9] Visit: 03 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 GRB190829A WFC3/IR MULTIAC IR F140W NSAMP=12, SAMP-SEQ=STEP50 1 DEF GS ACQ SCENARIO BASE1B3; CUM (1047.699 PATTERN 1 1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB190829A WFC3/UVI ACCUM UVIS1 F606W 1 348 S PATTERN 2 2 S (1044 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB190829A 1 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM GRB190829A 1 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM GRB190829A 1 WFC3/IR MULTIAC IR F140W 3 none none none 1 N/A CUM GRB190829A 2 WFC3/UVI ACCUM UVIS1 F606W 1 none none none 1 N/A S GRB190829A 2 WFC3/UVI ACCUM UVIS1 F606W 2 none none none 1 N/A S GRB190829A 2 WFC3/UVI ACCUM UVIS1 F606W 3 none none none 1 N/A S 16320( 2) - 30-Jun-2020 14:33:22 - [ 10] Summary Form for Proposal 16320 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures GRISM1024, IR, UVIS1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=12, NSAMP=13, SAMP-SEQ=STEP100, SAMP-SEQ=STEP50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 48.0012D TO 48.0012 D, PATTERN 1 1, PATTERN 2 2, POS TARG -24.89066496118098, -29.827139460181158, POS TARG -25.90766496118098, -30.193139460181158, POS TARG -26.24366496118098, -31.039139460181158, POS TARG -27.26066496118098, -31.402139460181157, POS TARG -27.59666496118098, -32.24813946018116, POS TARG -28.61366496118098, -32.61113946018116, SAME ORIENT AS 01, SEQ 01, 02, 03 WITHIN 7 D, SEQ 1-4 NON-INT, SEQ 5-8 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F125W, F140W, F606W, G102, G141 ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB190829A ------------------------------------------------------------------------------------------------------------------------------------