14892( 3) - 21-Apr-2017 18:45:39 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14892 Version: 3 Check-in Time: 21-Apr-2017 18:45:39 STScI Edit Number: 0 Title Determining the Progenitor of a Red Transient ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Mr. Bruce McCollum American University Y CoI: Mr. Lee Rottler American University N CoI: Dr. Seppo J. Laine California Institute of Technology N CoI: Dr. Frederick C. Bruhweiler American University N ------------------------------------------------------------------------------------ Abstract In recent years several nova-like transients have been observed whose peak brightness is between that of novae and supernovae. Various names have been suggested for them, such as red transients, luminous red novae, and intermediate luminosity optical transients. Despite the disagreement in nomenclature, it is agreed that these transients have outburst mechanisms different than in classical novae or supernovae. Only a few have been well studied, and it may be said that, as a class, they are not yet well understood. One of the impediments to modeling and understanding them is that little is known of the nature of the progenitor stars, because the progenitors appeared unexceptional and sometimes were extragalactic and thus too faint even to appear in standard catalogs. However, the spectral type and mass of the prognitor star are crucial model inputs. The field of one recent extagalactic transient was imaged in several HST bandpasses and offers the valuable opportunity to learn the nature of a progenitor star. Because of pointing uncertainties, it is uncertain which object is the progenitor, so we request new HST images to identify the object in order to derive the spectral type of the progenitor star. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will devote one orbit each to the three filters in the proposal (Y, H, and J), exposing as long as possible in one orbit. ------------------------------------------------------------------------------------ 14892( 3) - 21-Apr-2017 18:45:39 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 S16EA STAR, AGB STAR, RA=12H15M38.6100S, J2000 V = 19.0 +/- 1.0 CIRCUMSTELLAR MATTER, DEC=+36D19'46.90" EJECTA, INTERACTING BINARY, M III-I Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 14892( 3) - 21-Apr-2017 18:45:39 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-MIN Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.572 Line_Spacing 0.365 Coordinate_Frame POS-TARG Pattern_Orient 18.528 Angle_Between_Sides 74.653 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 14892( 3) - 21-Apr-2017 18:45:39 - [ 4] Visit: 01 (Yband) 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 S16EA WFC3/IR MULTIAC IRSUB256 F105W SAMP-SEQ=SPARS5, NSAMP=15 9 DEF PATTERN 1 1 CUM (1193.973 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 1 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 7 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 2 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 3 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F105W 4 none 9 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 6] Visit: 02 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 S16EA WFC3/IR MULTIAC IRSUB256 F110W NSAMP=15, SAMP-SEQ=SPARS5 9 DEF PATTERN 1 1 CUM (1193.973 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 1 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 7 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 2 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 3 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F110W 4 none 9 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 8] Visit: 03 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 S16EA WFC3/IR MULTIAC IRSUB256 F160W NSAMP=15, SAMP-SEQ=SPARS5 9 DEF PATTERN 1 1 CUM (1193.973 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 1 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 7 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 2 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 3 none 9 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 1 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 2 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 3 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 4 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 5 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 6 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 7 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 8 none 1 N/A CUM S16EA 1 WFC3/IR MULTIAC IRSUB256 F160W 4 none 9 none 1 N/A CUM 14892( 3) - 21-Apr-2017 18:45:39 - [ 10] Summary Form for Proposal 14892 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IRSUB256 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=15, SAMP-SEQ=SPARS5 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F105W, F110W, F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names S16EA ------------------------------------------------------------------------------------------------------------------------------------