14674( 5) - 13-Jun-2017 22:52:13 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14674 Version: 5 Check-in Time: 13-Jun-2017 22:52:13 STScI Edit Number: 1 Title Far UV Spectroscopy of Superluminous Supernovae ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Robert M. Quimby San Diego State University Y CoI: Prof. Jeff Cooke Swinburne University of Technology N CoI: Dr. Peter J. Brown Texas A & M University N CoI: Melanie Kae Olaes San Diego State University N CoI: Dr. Ragnhild Lunnan California Institute of Technology N ------------------------------------------------------------------------------------ Abstract Optical transient searches have yielded a diverse sample of supernovae with peak luminosities 10-100 times greater than common events. These superluminous supernovae (SLSN) have been shown to be especially UV bright, which make these objects ripe for discovery at high redshifts. Indeed, archival searches have already identified SLSN out to z=3.9 and the first dedicated searches for these events at z>3 are now underway. However, there is a dearth of rest-frame, far-UV (FUV; <1800 A) spectra of SLSN available to enable classification of these high redshift discoveries. FUV comparison spectra from optically confirmed SLSN are needed to rule out contaminating sources, such as AGN and tidal disruption events. These spectra will also provide a new window on the physical nature of SLSN, which remains a source of debate. Here we propose to more than double the entire sample SLSN with rest-frame FUV spectra. This sample will enable the first test of whether these transients can accurately be classified through only their FUV spectra. ------------------------------------------------------------------------------------ Observations Description ------------------------ This proposal is for UV spectroscopy of four superluminous supernovae to be found in Cycle 24. Two of these targets will be at low redshifts (z<0.4) and the other two will be at moderate redshifts (0.6 < z < 0.8). For each low-redshift target we request both COS/G140L and STIS/G230L observations. These observations require fast turn around (<10 days from activation), and should be considered disruptive ToOs. The other two, moderate-redshift targets will also be ToO targets, but these will be non-disruptive. For these, we request WFC3 G280 UV grism observations. ------------------------------------------------------------------------------------ 14674( 5) - 13-Jun-2017 22:52:13 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 5 SN2017EGM EXT-STAR, SUPERNOVA RA=10H19M5.6200S +/- 0.3", J2000 V = 15.3 DEC=+46D27'14.15" +/- 0.3" Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 14674( 5) - 13-Jun-2017 22:52:13 - [ 3] TARGET LIST Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ 1 SLSN1 SLSN AT Z<0.4 V = 19 ------------------------------------------------------------------------------------------------------------------------------------ 2 SLSN2 SLSN AT Z<0.4 V = 19 ------------------------------------------------------------------------------------------------------------------------------------ 3 SLSN3 SLSN AT 0.6 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 SLSN2 COS/NUV ACQ/IMA PSA MIRRORA 1 60 S (60 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SLSN2 COS/FUV TIME-TA PSA G140L 1105 FLASH=YES, BUFFER-TIME=6000, 1 500 S G FP-POS=ALL see below (2116 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SLSN2 COS/FUV TIME-TA PSA G140L 1105 FLASH=YES, BUFFER-TIME=6000, 1 1300 S G FP-POS=ALL see below (5600 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SLSN2 2 COS/FUV TIME-TA PSA G140L 1105 none none none 1 1 529.0 S G SLSN2 2 COS/FUV TIME-TA PSA G140L 1105 none none none 2 1 529.0 S G SLSN2 2 COS/FUV TIME-TA PSA G140L 1105 none none none 3 1 529.0 S G SLSN2 2 COS/FUV TIME-TA PSA G140L 1105 none none none 4 1 529.0 S G SLSN2 3 COS/FUV TIME-TA PSA G140L 1105 none none none 1 2 1400.0 S G SLSN2 3 COS/FUV TIME-TA PSA G140L 1105 none none none 2 2 1400.0 S G SLSN2 3 COS/FUV TIME-TA PSA G140L 1105 none none none 3 3 1400.0 S G SLSN2 3 COS/FUV TIME-TA PSA G140L 1105 none none none 4 3 1400.0 S G 14674( 5) - 13-Jun-2017 22:52:13 - [ 5] Visit: 04 (SLSN2-STIS) Visit Requirements: AFTER 03 BY 0 D TO 2 D; ON HOLD On Hold Comments: Target of Opportunity 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 SLSN2 STIS/CCD ACQ F28X50LP MIRROR 1 30 S (30 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SLSN2 STIS/NUV TIME-TA 52X0.2 G230L 2376 BUFFER-TIME=600 1 500 S -MAMA G see below (2230 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN2 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SLSN2 2 STIS/NUV TIME-TA 52X0.2 G230L 2376 none none none none 1 2230.0 S -MAMA G 14674( 5) - 13-Jun-2017 22:52:13 - [ 6] Visit: 05 (SLSN3) Visit Requirements: ON HOLD On Hold Comments: Target of Opportunity 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 SLSN3 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG 0.135, -49.865 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SLSN3 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2350 S POS TARG 0.135, -49.865 S see below (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SLSN3 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG 0.0, -50 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SLSN3 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2460 S POS TARG 0.0, -50 S see below (2458 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SLSN3 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG -0.135, -50.135 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 SLSN3 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2460 S POS TARG -0.135, -50.135 S see below (2458 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN3 1 WFC3/UVI ACCUM G280-REF F200LP none none none 1 1 44.0 S S SLSN3 1 WFC3/UVI ACCUM G280-REF F200LP none none none 2 1 44.0 S S SLSN3 2 WFC3/UVI ACCUM UVIS G280 none none none 1 1 1174.0 S S SLSN3 2 WFC3/UVI ACCUM UVIS G280 none none none 2 1 1174.0 S S SLSN3 3 WFC3/UVI ACCUM G280-REF F200LP none none none 1 2 44.0 S S SLSN3 3 WFC3/UVI ACCUM G280-REF F200LP none none none 2 2 44.0 S S 14674( 5) - 13-Jun-2017 22:52:13 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN3 4 WFC3/UVI ACCUM UVIS G280 none none none 1 2 1229.0 S S SLSN3 4 WFC3/UVI ACCUM UVIS G280 none none none 2 2 1229.0 S S SLSN3 5 WFC3/UVI ACCUM G280-REF F200LP none none none 1 3 44.0 S S SLSN3 5 WFC3/UVI ACCUM G280-REF F200LP none none none 2 3 44.0 S S SLSN3 6 WFC3/UVI ACCUM UVIS G280 none none none 1 3 1229.0 S S SLSN3 6 WFC3/UVI ACCUM UVIS G280 none none none 2 3 1229.0 S S 14674( 5) - 13-Jun-2017 22:52:13 - [ 8] Visit: 06 (SLSN4) Visit Requirements: ON HOLD On Hold Comments: Target of Opportunity 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 SLSN4 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG 0.135, -49.865 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SLSN4 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2350 S POS TARG 0.135, -49.865 S see below (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SLSN4 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG 0.0, -50 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SLSN4 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2460 S POS TARG 0.0, -50 S see below (2458 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SLSN4 WFC3/UVI ACCUM G280-REF F200LP FLASH=8, CR-SPLIT=2 1 90 S POS TARG -0.135, -50.135 S see below (88 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 SLSN4 WFC3/UVI ACCUM UVIS G280 CR-SPLIT=2 1 2460 S POS TARG -0.135, -50.135 S see below (2458 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN4 1 WFC3/UVI ACCUM G280-REF F200LP none none none 1 1 44.0 S S SLSN4 1 WFC3/UVI ACCUM G280-REF F200LP none none none 2 1 44.0 S S SLSN4 2 WFC3/UVI ACCUM UVIS G280 none none none 1 1 1174.0 S S SLSN4 2 WFC3/UVI ACCUM UVIS G280 none none none 2 1 1174.0 S S SLSN4 3 WFC3/UVI ACCUM G280-REF F200LP none none none 1 2 44.0 S S SLSN4 3 WFC3/UVI ACCUM G280-REF F200LP none none none 2 2 44.0 S S 14674( 5) - 13-Jun-2017 22:52:13 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SLSN4 4 WFC3/UVI ACCUM UVIS G280 none none none 1 2 1229.0 S S SLSN4 4 WFC3/UVI ACCUM UVIS G280 none none none 2 2 1229.0 S S SLSN4 5 WFC3/UVI ACCUM G280-REF F200LP none none none 1 3 44.0 S S SLSN4 5 WFC3/UVI ACCUM G280-REF F200LP none none none 2 3 44.0 S S SLSN4 6 WFC3/UVI ACCUM UVIS G280 none none none 1 3 1229.0 S S SLSN4 6 WFC3/UVI ACCUM UVIS G280 none none none 2 3 1229.0 S S 14674( 5) - 13-Jun-2017 22:52:13 - [ 10] Visit: 07 (SN2017egm-COS) Visit Requirements: ON HOLD ; TOO RESPONSE TIME 10.0D On Hold Comments: Target of Opportunity 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 SN2017EGM COS/NUV ACQ/IMA PSA MIRRORB 1 30 S (30 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2017EGM COS/FUV TIME-TA PSA G140L 1105 FLASH=YES, BUFFER-TIME=6000, 1 500 S G FP-POS=ALL see below (2316 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2017EGM COS/FUV TIME-TA PSA G140L 1105 FLASH=YES, BUFFER-TIME=6000, 1 1300 S G FP-POS=ALL see below (5884 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2017EGM 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE SN2017EGM 2 COS/FUV TIME-TA PSA G140L 1105 none none none 1 1 579.0 S G SN2017EGM 2 COS/FUV TIME-TA PSA G140L 1105 none none none 2 1 579.0 S G SN2017EGM 2 COS/FUV TIME-TA PSA G140L 1105 none none none 3 1 579.0 S G SN2017EGM 2 COS/FUV TIME-TA PSA G140L 1105 none none none 4 1 579.0 S G SN2017EGM 3 COS/FUV TIME-TA PSA G140L 1105 none none none 1 2 1471.0 S G SN2017EGM 3 COS/FUV TIME-TA PSA G140L 1105 none none none 2 2 1471.0 S G SN2017EGM 3 COS/FUV TIME-TA PSA G140L 1105 none none none 3 3 1471.0 S G SN2017EGM 3 COS/FUV TIME-TA PSA G140L 1105 none none none 4 3 1471.0 S G 14674( 5) - 13-Jun-2017 22:52:13 - [ 11] Visit: 08 (SN2017egm-STIS) Visit Requirements: AFTER 07 BY 0 D TO 2 D; ON HOLD On Hold Comments: Target of Opportunity 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 SN2017EGM STIS/CCD ACQ F28X50LP MIRROR 1 10 S (10 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2017EGM STIS/NUV TIME-TA 52X0.2 G230L 2376 BUFFER-TIME=600 1 1681 S -MAMA G (1681 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2017EGM STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 300 S (300 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2017EGM 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SN2017EGM 2 STIS/NUV TIME-TA 52X0.2 G230L 2376 none none none none 1 N/A -MAMA G SN2017EGM 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A SN2017EGM 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A 14674( 5) - 13-Jun-2017 22:52:13 - [ 12] Summary Form for Proposal 14674 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.2, 52X0.2E1, F28X50LP, G280-REF, PSA, UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV, STIS/CCD, STIS/NUV-MAMA, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=600, BUFFER-TIME=6000, CR-SPLIT=2, FLASH=8, FLASH=YES, FP-POS=ALL ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 03 BY 0 D TO 2 D, AFTER 07 BY 0 D TO 2 D, ON HOLD , POS TARG -0.135, -50.135, POS TARG 0.0, -50, POS TARG 0.135, -49.865, TOO RESPONSE TIME 10.0D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F200LP, G140L, G230L, G280, G430L, MIRROR, MIRRORA, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names SLSN2, SLSN3, SLSN4, SN2017EGM ------------------------------------------------------------------------------------------------------------------------------------