13787( 7) - 25-Feb-2015 11:35:22 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13787 Version: 7 Check-in Time: 25-Feb-2015 11:35:22 STScI Edit Number: 3 Title Massive stars dying alone: Extremely remote environments of SN2009ip and SN2010jp ------------------------------------------------------------------------------------ Type Cycle GO 22 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Nathan Smith University of Arizona Y CoI: Dr. Jon Mauerhan University of California - Berkeley N ------------------------------------------------------------------------------------ Abstract We propose an imaging study of the astonishingly remote environments of two recent supernovae (SNe): SN2009ip and SN2010jp. Both were unusual Type IIn explosions that crashed into dense circumstellar material (CSM) ejected by the star shortly before explosion. The favored progenitors of these SNe are very massive luminous blue variable (LBV) stars. In fact, SN2009ip presents an extraordinay case where the LBV-like progenitor was actually detected directly in archival HST data, and where we obtained spectra and photometry for numerous pre-SN eruptions. No other SN has this treasure trove of detailed information about the progenitor (not even SN1987A). SN2010jp represents a possible collapsar-powered event, since it showed evidence of a fast bipolar jet in spectra and a low 56Ni mass; this would be an analog of the black-hole forming explosions that cause gamma ray bursts, but where the relativistic jet is damped by a residual H envelope on the star. In both cases, the only viable models for these SNe involve extremely massive (initial masses of 40-100 Msun) progenitor stars. This seems at odds with their extremely remote environments in the far outskirts of their host galaxies, with no detected evidence for an underlying massive star population in ground-based data (nor in the single shallow WFPC2/F606W image of SN2009ip). Here we propose deep UV HST images to search for any mid/late O-type stars nearby, deep red images to detect any red supergiants, and an H-alpha image to search for any evidence of ongoing star formation in the vicinity. These observations will place important and demanding constraints on the initial masses and ages of these progenitors. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will be obtaining deep WFC3 images in the V (555W), I (814W) and Halpha (665/667N) for two recent SNe 2010jp and 2009IP. Additionally, for SN 2009IP we will also obtain UV (F275W) imaging to look for O star companions. These observations will be taken over 8 orbits; 4 orbits for SN 2009ip, and 4 orbits for SN 2010jp. For SN 2009ip a full orbit is needed for F275W, two full orbits for Halpha (665N), and one orbit for F814W and F555W. For SN 2010jp, which is further away with higher extinction, two full orbits are needed for Halpha (657N), an orbit and a half for F555W, and half an orbit for F814W. 13787( 7) - 25-Feb-2015 11:35:22 - [ 2] There are no timing constraints for our observations, although if possible we would like the visits for each SNe to occur as close to each other as is feasible. ------------------------------------------------------------------------------------ 13787( 7) - 25-Feb-2015 11:35:22 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2009IP STAR, SUPERNOVA TYPE II RA=22H23M8.2600S, J2000 V = 21 DEC=-28D56'52.40" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2010JP STAR, SUPERNOVA TYPE II RA=06H16M30.6300S, J2000 V = 25 DEC=-21D24'36.20" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 13787( 7) - 25-Feb-2015 11:35:22 - [ 4] Visit: 01 Visit Requirements: GROUP 01, 02, 03 WITHIN 7D 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 SN2009IP WFC3/UVI ACCUM UVIS F275W FLASH=12 1 2900 S GS ACQ SCENARIO BASE1B3 S (2900 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2009IP 1 WFC3/UVI ACCUM UVIS F275W none none none none 1 N/A S 13787( 7) - 25-Feb-2015 11:35:22 - [ 5] 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 SN2009IP WFC3/UVI ACCUM UVIS F814W 1 1100 S GS ACQ SCENARIO BASE1B3 S (1100 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2009IP WFC3/UVI ACCUM UVIS F555W 1 1650 S S (1650 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2009IP 1 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SN2009IP 2 WFC3/UVI ACCUM UVIS F555W none none none none 1 N/A S 13787( 7) - 25-Feb-2015 11:35:22 - [ 6] Visit: 03 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 SN2009IP WFC3/UVI ACCUM UVIS F657N FLASH=12 2 2900 S GS ACQ SCENARIO BASE1B3 S (5911 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2009IP 1 WFC3/UVI ACCUM UVIS F657N none none 1 none 1 N/A S SN2009IP 1 WFC3/UVI ACCUM UVIS F657N none none 2 none 2 3011.0 S S 13787( 7) - 25-Feb-2015 11:35:22 - [ 7] Visit: 04 Visit Requirements: SAME ORIENT AS 05; GROUP 04, 05 WITHIN 7D 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 SN2010JP WFC3/UVI ACCUM UVIS F665N FLASH=12 2 2890 S POS TARG S (5892 S) 41.31195860320133, 20.807781574989164 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2010JP 1 WFC3/UVI ACCUM UVIS F665N none none 1 none 1 N/A S SN2010JP 1 WFC3/UVI ACCUM UVIS F665N none none 2 none 2 3002.0 S S 13787( 7) - 25-Feb-2015 11:35:22 - [ 8] Visit: 05 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 SN2010JP WFC3/UVI ACCUM UVIS F555W 1 2900 S POS TARG S see below 41.31195860320133, (2891 S) 20.807781574989164 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2010JP WFC3/UVI ACCUM UVIS F555W 1 1300 S POS TARG S see below 41.31195860320133, (1328 S) 20.807781574989164 ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2010JP WFC3/UVI ACCUM UVIS F814W 1 1500 S POS TARG S see below 41.31195860320133, (1528 S) 20.807781574989164 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2010JP 1 WFC3/UVI ACCUM UVIS F555W none none none none 1 2891.0 S S SN2010JP 2 WFC3/UVI ACCUM UVIS F555W none none none none 2 1328.0 S S SN2010JP 3 WFC3/UVI ACCUM UVIS F814W none none none none 2 1528.0 S S 13787( 7) - 25-Feb-2015 11:35:22 - [ 9] Summary Form for Proposal 13787 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=12 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GROUP 01, 02, 03 WITHIN 7D, GROUP 04, 05 WITHIN 7D, GS ACQ SCENARIO BASE1B3, POS TARG 41.31195860320133, 20.807781574989164, SAME ORIENT AS 01, SAME ORIENT AS 05 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F275W, F555W, F657N, F665N, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN2009IP, SN2010JP ------------------------------------------------------------------------------------------------------------------------------------