13717( 6) - 01-Oct-2014 18:11:54 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13717 Version: 6 Check-in Time: 01-Oct-2014 18:11:54 STScI Edit Number: 0 Title Polarimetry of SN 2014J in M82 as a Probe of Its Dusty Environment ------------------------------------------------------------------------------------ Type Cycle GO 22 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Lifan Wang Texas A & M University Y CoI: Dr. Peter A. Hoeflich Florida State University N CoI: Dr. Dietrich Baade European Southern Observatory - Germany N CoI: Dr. Peter J. Brown Texas A & M University N CoI: Dr. Justyn Maund The Queen's University of Belfast N CoI: Dr. Ferdinando Patat European Southern Observatory - Germany N CoI: Dr. William B. Sparks Space Telescope Science Institute N CoI: Dr. Alejandro Clocchiatti Pontificia Universidad Catolica de Chile N CoI: Dr. Jason Spyromilio European Southern Observatory - Germany N CoI: Xiaofeng Wang Tsinghua University N CoI: Dr. J. Craig Wheeler University of Texas at Austin N ------------------------------------------------------------------------------------ Abstract Late time polarimetry can effectively probe the circumstellar (CS) dust environment of SNe Ia. We propose to acquire imaging polarimetry of SN 2014J at three epochs between 200-400 days after the SN explosion. The delayed light from optical maximum may be scattered into the line of sight and reveal the scattering dust through polarization. Light echoes from interstellar dust at very large distances (> 10pc) from the SN will not be highly polarized in these observations due to the small scattering angle involved. Polarimetry at late time is thus an unambegeous probe of CS dust very close to the SN (at distances ~ 1 light year). Observations of the illusive CS matter is critical in constraining the progenitor systems of SNIa. ------------------------------------------------------------------------------------ Observations Description ------------------------ This program attempts to acquire imaging polarization of SN2014J using ACS/WFC. We intend to observe at two separate epochs at around Nov, 2014, and Apr 15 2015. The polarization data will be observed in three filters: F475W, F606W, and F775W. For each filter three polarizers POL0V, POL120V, and POL60V are used to aqcuire a complete polarization data set. Multiple exposures are required for cosmic ray rejection. ------------------------------------------------------------------------------------ 13717( 6) - 01-Oct-2014 18:11:54 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN-2014J STAR, SUPERNOVA TYPE IA RA=09H55M42.1200S, J2000 V = V = 17.5 +/- 1.5 DEC=+69D40'25.90" 203.00 Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 13717( 6) - 01-Oct-2014 18:11:54 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 3 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 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 ------------------------------------------------------------------------------------------------------------------------------------ 13717( 6) - 01-Oct-2014 18:11:54 - [ 4] Visit: V1 Visit Requirements: BETWEEN 01-SEP-2014:00:00:00 AND 30-NOV-2014:00:00:00 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 SN-2014J ACS/WFC ACCUM WFC F475W, 1 130 S (390 PATTERN 1 1 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-2014J ACS/WFC ACCUM WFC F475W, 1 130 S (390 PATTERN 1 2 POL120V S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN-2014J ACS/WFC ACCUM WFC F475W, 1 130 S (390 PATTERN 1 3 POL60V S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN-2014J ACS/WFC ACCUM WFC F606W, 1 40 S (80 PATTERN 2 4 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN-2014J ACS/WFC ACCUM WFC F606W, 1 40 S (80 PATTERN 2 5 POL120V S) ------------------------------------------------------------------------------------------------------------------------------------ 6 SN-2014J ACS/WFC ACCUM WFC F606W, 1 40 S (80 PATTERN 2 6 POL60V S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN-2014J ACS/WFC ACCUM WFC F775W, 1 30 S (60 PATTERN 2 7 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 8 SN-2014J ACS/WFC ACCUM WFC F775W, 1 55 S (55 POL120V S) ------------------------------------------------------------------------------------------------------------------------------------ 9 SN-2014J ACS/WFC ACCUM WFC F775W, 1 55 S (55 POL60V 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-2014J 1 ACS/WFC ACCUM WFC F475W, 1 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F475W, 2 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F475W, 3 none none none 1 N/A POL0V SN-2014J 2 ACS/WFC ACCUM WFC F475W, 1 none none none 1 N/A POL120V 13717( 6) - 01-Oct-2014 18:11:54 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-2014J 2 ACS/WFC ACCUM WFC F475W, 2 none none none 1 N/A POL120V SN-2014J 2 ACS/WFC ACCUM WFC F475W, 3 none none none 1 N/A POL120V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 1 none none none 1 N/A POL60V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 2 none none none 1 N/A POL60V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 3 none none none 1 N/A POL60V SN-2014J 4 ACS/WFC ACCUM WFC F606W, 1 none none none 2 N/A POL0V SN-2014J 4 ACS/WFC ACCUM WFC F606W, 2 none none none 2 N/A POL0V SN-2014J 5 ACS/WFC ACCUM WFC F606W, 1 none none none 2 N/A POL120V SN-2014J 5 ACS/WFC ACCUM WFC F606W, 2 none none none 2 N/A POL120V SN-2014J 6 ACS/WFC ACCUM WFC F606W, 1 none none none 2 N/A POL60V SN-2014J 6 ACS/WFC ACCUM WFC F606W, 2 none none none 2 N/A POL60V SN-2014J 7 ACS/WFC ACCUM WFC F775W, 1 none none none 2 N/A POL0V SN-2014J 7 ACS/WFC ACCUM WFC F775W, 2 none none none 2 N/A POL0V SN-2014J 8 ACS/WFC ACCUM WFC F775W, none none none none 2 N/A POL120V SN-2014J 9 ACS/WFC ACCUM WFC F775W, none none none none 2 N/A POL60V 13717( 6) - 01-Oct-2014 18:11:54 - [ 6] Visit: V2 Visit Requirements: BETWEEN 01-MAR-2015:00:00:00 AND 15-APR-2015:00:00:00 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 SN-2014J ACS/WFC ACCUM WFC F475W, 1 400 S PATTERN 1 1 POL0V (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-2014J ACS/WFC ACCUM WFC F475W, 1 400 S PATTERN 1 2 POL120V (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN-2014J ACS/WFC ACCUM WFC F475W, 1 400 S PATTERN 1 3 POL60V (1200 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN-2014J ACS/WFC ACCUM WFC F475W, 1 200 S (200 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN-2014J ACS/WFC ACCUM WFC F475W, 1 200 S (200 POL120V 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-2014J 1 ACS/WFC ACCUM WFC F475W, 1 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F475W, 2 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F475W, 3 none none none 1 N/A POL0V SN-2014J 2 ACS/WFC ACCUM WFC F475W, 1 none none none 1 N/A POL120V SN-2014J 2 ACS/WFC ACCUM WFC F475W, 2 none none none 1 N/A POL120V SN-2014J 2 ACS/WFC ACCUM WFC F475W, 3 none none none 2 N/A POL120V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 1 none none none 2 N/A POL60V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 2 none none none 2 N/A POL60V SN-2014J 3 ACS/WFC ACCUM WFC F475W, 3 none none none 2 N/A POL60V SN-2014J 4 ACS/WFC ACCUM WFC F475W, none none none none 2 N/A POL0V 13717( 6) - 01-Oct-2014 18:11:54 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-2014J 5 ACS/WFC ACCUM WFC F475W, none none none none 2 N/A POL120V 13717( 6) - 01-Oct-2014 18:11:54 - [ 8] Visit: V3 Visit Requirements: BETWEEN 01-MAR-2015:00:00:00 AND 30-APR-2015:00:00:00 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 SN-2014J ACS/WFC ACCUM WFC F606W, 1 60 S (180 PATTERN 1 1 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN-2014J ACS/WFC ACCUM WFC F606W, 1 60 S (180 PATTERN 1 2 POL120V S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN-2014J ACS/WFC ACCUM WFC F606W, 1 60 S (180 PATTERN 1 3 POL60V S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN-2014J ACS/WFC ACCUM WFC F775W, 1 20 S (60 PATTERN 1 4 POL0V S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN-2014J ACS/WFC ACCUM WFC F775W, 1 20 S (60 PATTERN 1 5 POL120V S) ------------------------------------------------------------------------------------------------------------------------------------ 6 SN-2014J ACS/WFC ACCUM WFC F775W, 1 20 S (60 PATTERN 1 6 POL60V S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN-2014J ACS/WFC ACCUM WFC F775W 1 120 S (120 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-2014J 1 ACS/WFC ACCUM WFC F606W, 1 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F606W, 2 none none none 1 N/A POL0V SN-2014J 1 ACS/WFC ACCUM WFC F606W, 3 none none none 1 N/A POL0V SN-2014J 2 ACS/WFC ACCUM WFC F606W, 1 none none none 1 N/A POL120V SN-2014J 2 ACS/WFC ACCUM WFC F606W, 2 none none none 1 N/A POL120V SN-2014J 2 ACS/WFC ACCUM WFC F606W, 3 none none none 1 N/A POL120V SN-2014J 3 ACS/WFC ACCUM WFC F606W, 1 none none none 1 N/A POL60V 13717( 6) - 01-Oct-2014 18:11:54 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN-2014J 3 ACS/WFC ACCUM WFC F606W, 2 none none none 1 N/A POL60V SN-2014J 3 ACS/WFC ACCUM WFC F606W, 3 none none none 1 N/A POL60V SN-2014J 4 ACS/WFC ACCUM WFC F775W, 1 none none none 2 N/A POL0V SN-2014J 4 ACS/WFC ACCUM WFC F775W, 2 none none none 2 N/A POL0V SN-2014J 4 ACS/WFC ACCUM WFC F775W, 3 none none none 2 N/A POL0V SN-2014J 5 ACS/WFC ACCUM WFC F775W, 1 none none none 2 N/A POL120V SN-2014J 5 ACS/WFC ACCUM WFC F775W, 2 none none none 2 N/A POL120V SN-2014J 5 ACS/WFC ACCUM WFC F775W, 3 none none none 2 N/A POL120V SN-2014J 6 ACS/WFC ACCUM WFC F775W, 1 none none none 2 N/A POL60V SN-2014J 6 ACS/WFC ACCUM WFC F775W, 2 none none none 2 N/A POL60V SN-2014J 6 ACS/WFC ACCUM WFC F775W, 3 none none none 2 N/A POL60V SN-2014J 7 ACS/WFC ACCUM WFC F775W none none none none 2 N/A 13717( 6) - 01-Oct-2014 18:11:54 - [ 10] Summary Form for Proposal 13717 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-MAR-2015:00:00:00 AND 15-APR-2015:00:00:00, BETWEEN 01-MAR-2015:00:00:00 AND 30-APR-2015:00:00:00, BETWEEN 01-SEP-2014:00:00:00 AND 30-NOV-2014:00:00:00, PATTERN 1 1, PATTERN 1 2, PATTERN 1 3, PATTERN 1 4, PATTERN 1 5, PATTERN 1 6, PATTERN 2 4, PATTERN 2 5, PATTERN 2 6, PATTERN 2 7 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F475W, F606W, F775W, POL0V, POL120V, POL60V ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN-2014J ------------------------------------------------------------------------------------------------------------------------------------