14150( 4) - 31-Jul-2015 18:27:15 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14150 Version: 4 Check-in Time: 31-Jul-2015 18:27:15 STScI Edit Number: 2 Title Searching for the disappearance of the progenitor of the unique SN 2009ip ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Morgan Fraser University of Cambridge Y CoI: Dr. Rubina Kotak The Queen's University of Belfast N CoI: Dr. Andrea Pastorello Osservatorio Astronomico di Padova N ------------------------------------------------------------------------------------ Abstract We request HST time in order to obtain late-time imaging of SN 2009ip, where for the first time in the history of astronomy we have monitored a star for many years before it has (possibly) exploded as a supernova (SN). SN 2009ip was first discovered as a giant outburst of a luminous blue variable star in 2009, and three years later an explosive event caused it to reach SN-like luminosities of M_V~-18, and a bolometric luminosity of 10E43 erg/s. We have monitored SN 2009ip extensively over the following 2.5 years, and now seek to conduct the definitive test of whether SN 2009ip exploded as a core-collapse supernova or not, by observing whether SN 2009ip fades below or remains above the progenitor magnitude. ------------------------------------------------------------------------------------ Observations Description ------------------------ We wish to obtain deep imaging of the nearby supernova/supernova impostor SN 2009ip, to confirm (or otherwise) the disappearance of the progenitor candidate seen in pre-explosion WFPC2 imaging. We will observe SN 2009ip with ACS/WFC F606W and F814W, with WFC3/UVIS F438W, and with WFC3/IR F606W. As the target is still fading, we wish to observe it as late as possible in Cycle 23 to ensure that it will have faded below the expected flux level of the progenitor. ------------------------------------------------------------------------------------ 14150( 4) - 31-Jul-2015 18:27:15 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-2009IP STAR, LUMINOUS BLUE RA=22H23M8.2600S +/- 1", J2000 V = 23.7 VARIABLE, SUPERNOVA DEC=-28D56'52.40" +/- 1" Reference Frame: Other: SIMBAD Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 14150( 4) - 31-Jul-2015 18:27:15 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 3.011 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.28 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.145 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.636 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 41.788 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 14150( 4) - 31-Jul-2015 18:27:15 - [ 4] Visit: 01 Visit Requirements: PCS MODE FINE; AFTER 01-SEP-2016:00:00:00 On Hold Comments: Additional Comments: ACS/WFC imaging in F606W and F814W 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 SN-2009IP ACS/WFC ACCUM WFC1 F606W 1 550 S GS ACQ SCENARIO BASE1B3; see below PATTERN 1 1 (1066 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-2009IP ACS/WFC ACCUM WFC1 F814W 1 550 S PATTERN 1 2 see below (1066 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-2009IP 1 ACS/WFC ACCUM WFC1 F606W 1 none none none 1 533.0 S SN-2009IP 1 ACS/WFC ACCUM WFC1 F606W 2 none none none 1 533.0 S SN-2009IP 2 ACS/WFC ACCUM WFC1 F814W 1 none none none 1 533.0 S SN-2009IP 2 ACS/WFC ACCUM WFC1 F814W 2 none none none 1 533.0 S 14150( 4) - 31-Jul-2015 18:27:15 - [ 5] Visit: 02 Visit Requirements: PCS MODE FINE; AFTER 01-SEP-2016:00:00:00 On Hold Comments: Additional Comments: WFC3 imaging in F435W and F160W 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 SN-2009IP WFC3/UVI ACCUM UVIS2 F438W FLASH=7 1 550 S GS ACQ SCENARIO SINGLE; S see below PATTERN 2 1 (1292 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-2009IP WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS50 1 DEF PATTERN 3 2 CUM (1205.875 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-2009IP 1 WFC3/UVI ACCUM UVIS2 F438W 1 none none none 1 646.0 S S SN-2009IP 1 WFC3/UVI ACCUM UVIS2 F438W 2 none none none 1 646.0 S S SN-2009IP 2 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM SN-2009IP 2 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM 14150( 4) - 31-Jul-2015 18:27:15 - [ 6] Summary Form for Proposal 14150 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, UVIS2, WFC1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/IR, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=7, NSAMP=13, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01-SEP-2016:00:00:00, GS ACQ SCENARIO BASE1B3, GS ACQ SCENARIO SINGLE, PATTERN 1 1, PATTERN 1 2, PATTERN 2 1, PATTERN 3 2, PCS MODE FINE ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F160W, F438W, F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN-2009IP ------------------------------------------------------------------------------------------------------------------------------------