15276( 3) - 14-Aug-2017 14:38:34 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15276 Version: 3 Check-in Time: 14-Aug-2017 14:38:34 STScI Edit Number: 0 Title The lens and host galaxy of the multiply-imaged gravitationally lensed SNIa iPTF16geu ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Ariel Goobar Stockholm University Y CoI: Dr. Rahman Amanullah Stockholm University N CoI: Dr. Joel Johansson Weizmann Institute of Science N CoI: Prof. Edvard Mortsell Stockholm University N CoI: Dr. Peter E. Nugent Lawrence Berkeley National Laboratory N CoI: Prof. Shrinivas R. Kulkarni California Institute of Technology N CoI: Dr. Mansi Kasliwal California Institute of Technology N CoI: Prof. Robert M. Quimby San Diego State University N CoI: Dr. Eran O. Ofek Weizmann Institute of Science N ------------------------------------------------------------------------------------ Abstract We request HST observations of the host galaxy and the lens of the gravitationally lensed multiply-imaged Type Ia SN iPTF16geu. These observations are required to accomplish the science outlined in the successful DD proposal of this target in Cycle 24. Since the SN will have faded by over 6 magnitudes, the Cycle 25 images will serve as references, needed to accurately measure the fluxes of the SN images through the 7 HST bands used in Cycle 24. The combined data-set will yield a precise estimate of the lensing magnification, including corrections for extinction of the SN light by dust grains in the host galaxy and in the intervening lensing galaxy. Time-delay measurements between the host galaxy subtracted SN images will be used to measure the Hubble constant. ------------------------------------------------------------------------------------ Observations Description ------------------------ Observations of host and lensing galaxies of the strongly lensed Type Ia supernova iPTF16geu ------------------------------------------------------------------------------------ 15276( 3) - 14-Aug-2017 14:38:34 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 IPTF16GEU GALAXY, EINSTEIN RING RA=21H04M15.8633S, J2000 V = 20.5 +/- 0.5 DEC=-06D20'24.50" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 15276( 3) - 14-Aug-2017 14:38:34 - [ 3] 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 WFC3-UVIS-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG Pattern_Orient 23.884 Angle_Between_Sides 81.785 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 15276( 3) - 14-Aug-2017 14:38:34 - [ 4] Visit: 01 (Reference16geu) Visit Requirements: ORIENT 60D TO 100 D; ORIENT 50D TO 55 D On Hold Comments: Additional Comments: The orientation requirements were chosen to avoid the bright star, 30 SE of target for the IR exposures, as recommended by WFC3 IR scientist in C24, Elena Sabbi. 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 IPTF16GEU WFC3/UVI ACCUM UVIS2-C51 F390W FLASH=11 1 360 S PATTERN 3 1-4 S 2C-SUB see below (1454 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 IPTF16GEU WFC3/UVI ACCUM UVIS2-C51 F475W FLASH=5 1 370 S S 2C-SUB see below (1494 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 IPTF16GEU WFC3/UVI ACCUM UVIS2-C51 F814W FLASH=5 1 270 S S 2C-SUB see below (1227 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 IPTF16GEU WFC3/UVI ACCUM UVIS2-C51 F625W FLASH=1 1 375 S S 2C-SUB see below (1648 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 IPTF16GEU WFC3/IR MULTIAC IRSUB512 F110W NSAMP=15, SAMP-SEQ=SPARS5 1 DEF POS TARG null, -20; CUM (125.262 PATTERN 1 5-7 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 IPTF16GEU WFC3/IR MULTIAC IRSUB512 F105W NSAMP=8, SAMP-SEQ=SPARS25 1 DEF POS TARG null, -20 CUM (483.905 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 IPTF16GEU WFC3/IR MULTIAC IRSUB512 F160W NSAMP=15, SAMP-SEQ=SPARS25 1 DEF POS TARG null, -20 CUM (965.252 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 | ------------------------------------------------------------------------------------------------------------------------------------ IPTF16GEU 1 WFC3/UVI ACCUM UVIS2-C5 F390W 1 none none none 1 363.0 S S 12C-SUB IPTF16GEU 1 WFC3/UVI ACCUM UVIS2-C5 F390W 2 none none none 1 363.0 S S 12C-SUB IPTF16GEU 1 WFC3/UVI ACCUM UVIS2-C5 F390W 3 none none none 2 364.0 S S 12C-SUB 15276( 3) - 14-Aug-2017 14:38:34 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ IPTF16GEU 1 WFC3/UVI ACCUM UVIS2-C5 F390W 4 none none none 2 364.0 S S 12C-SUB IPTF16GEU 2 WFC3/UVI ACCUM UVIS2-C5 F475W 1 none none none 1 373.0 S S 12C-SUB IPTF16GEU 2 WFC3/UVI ACCUM UVIS2-C5 F475W 2 none none none 1 373.0 S S 12C-SUB IPTF16GEU 2 WFC3/UVI ACCUM UVIS2-C5 F475W 3 none none none 2 374.0 S S 12C-SUB IPTF16GEU 2 WFC3/UVI ACCUM UVIS2-C5 F475W 4 none none none 2 374.0 S S 12C-SUB IPTF16GEU 3 WFC3/UVI ACCUM UVIS2-C5 F814W 1 none none none 1 273.0 S S 12C-SUB IPTF16GEU 3 WFC3/UVI ACCUM UVIS2-C5 F814W 2 none none none 1 273.0 S S 12C-SUB IPTF16GEU 3 WFC3/UVI ACCUM UVIS2-C5 F814W 3 none none none 2 274.0 S S 12C-SUB IPTF16GEU 3 WFC3/UVI ACCUM UVIS2-C5 F814W 4 none none none 3 407.0 S S 12C-SUB IPTF16GEU 4 WFC3/UVI ACCUM UVIS2-C5 F625W 1 none none none 1 378.0 S S 12C-SUB IPTF16GEU 4 WFC3/UVI ACCUM UVIS2-C5 F625W 2 none none none 2 379.0 S S 12C-SUB IPTF16GEU 4 WFC3/UVI ACCUM UVIS2-C5 F625W 3 none none none 2 379.0 S S 12C-SUB IPTF16GEU 4 WFC3/UVI ACCUM UVIS2-C5 F625W 4 none none none 3 512.0 S S 12C-SUB IPTF16GEU 5 WFC3/IR MULTIAC IRSUB512 F110W 1 none none none 3 N/A CUM IPTF16GEU 5 WFC3/IR MULTIAC IRSUB512 F110W 2 none none none 3 N/A CUM IPTF16GEU 5 WFC3/IR MULTIAC IRSUB512 F110W 3 none none none 3 N/A CUM IPTF16GEU 6 WFC3/IR MULTIAC IRSUB512 F105W 1 none none none 3 N/A CUM IPTF16GEU 6 WFC3/IR MULTIAC IRSUB512 F105W 2 none none none 3 N/A CUM IPTF16GEU 6 WFC3/IR MULTIAC IRSUB512 F105W 3 none none none 3 N/A CUM IPTF16GEU 7 WFC3/IR MULTIAC IRSUB512 F160W 1 none none none 3 N/A CUM IPTF16GEU 7 WFC3/IR MULTIAC IRSUB512 F160W 2 none none none 3 N/A CUM IPTF16GEU 7 WFC3/IR MULTIAC IRSUB512 F160W 3 none none none 3 N/A CUM 15276( 3) - 14-Aug-2017 14:38:34 - [ 6] Summary Form for Proposal 15276 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IRSUB512, UVIS2-C512C-SUB ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=1, FLASH=11, FLASH=5, NSAMP=15, NSAMP=8, SAMP-SEQ=SPARS25, SAMP-SEQ=SPARS5 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 50D TO 55 D, ORIENT 60D TO 100 D, PATTERN 1 5-7, PATTERN 3 1-4, POS TARG null, -20 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F105W, F110W, F160W, F390W, F475W, F625W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names IPTF16GEU ------------------------------------------------------------------------------------------------------------------------------------