10577( 3) - 08/05/05 08:57 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10577 Version: 3 Check-in Time: 05-Aug-2005 12:55:49 Title Resolving the non-radiative shock in SN1006 ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 14 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. John C. Raymond Smithsonian Institution Astrophysical Observatory CoI: Dr. William P. Blair The Johns Hopkins University N CoI: Dr. Ravi Sankrit The Johns Hopkins University N CoI: Ms. Kelly Korreck University of Michigan N CoI: Dr. Parviz Ghavamian The Johns Hopkins University N ------------------------------------------------------------------------------------ Abstract An ACS image of the H alpha filament in the supernova remnant SN1006 will resolve the thickness of the H alpha emission zone. This will permit us to derive an accurate pre-shock density, which in turn can be used to model the time-dependent X- ray spectrum of the bright X-ray ridge with no free parameters, thus benchmarking these widely used models. We will also search for evidence of a shock precursor, and we will use the scale of ripples in the shock to estimate the level of density inhomogeneity in the pre-shock gas. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a deep WFC H alpha image of the NW filament in SN1006. It uses the UDF dither pattern as suggested by Andy Fruchter; (0, 0), (3.0, 1.5), (4.5, 4.5), 1.5, 3.0) pixels and CR-SPLIT=0. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10577( 3) - 08/05/05 08:57 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN1006-NW ISM, EMISSION LINE RA=15H02M19.1700S +/- 2", DEC=- J2000 3.2E-16 erg/(cm2 s arcsec2) in H alpha NEBULA, FILAMENT, SHOCK 41D44'50.00" +/- 2" emission FRONT, SNR Coordinate Source: IMAGE_TIED_TO_GSC_FRAME Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 1998.0 -0.018 0.2 0.0 10577( 3) - 08/05/05 08:57 - [ 3] Visit: 01 Visit Priority: 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0, 0 see below Comments: This is the first position of the box dither suggested by Andy Fruchter: (0.0, 0.0), (3.0, 1.5), (4.5, 4.5), and (1.5, 3.0) ------------------------------------------------------------------------------------------------------------------------------------ 2 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.1488, 0.08595 see below ------------------------------------------------------------------------------------------------------------------------------------ 3 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.2232, 0.24075 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN1006-NW 1 ACS/WFC ACCUM WFC F658N none none none none 1 2746.0 S SN1006-NW 2 ACS/WFC ACCUM WFC F658N none none none none 2 2848.0 S SN1006-NW 3 ACS/WFC ACCUM WFC F658N none none none none 3 2828.0 S 10577( 3) - 08/05/05 08:57 - [ 4] Visit: 02 Visit Priority: 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.0744, 0.1548 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0, 0 see below ------------------------------------------------------------------------------------------------------------------------------------ 3 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.1488, 0.08595 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN1006-NW 1 ACS/WFC ACCUM WFC F658N none none none none 1 2766.0 S SN1006-NW 2 ACS/WFC ACCUM WFC F658N none none none none 2 2828.0 S SN1006-NW 3 ACS/WFC ACCUM WFC F658N none none none none 3 2828.0 S 10577( 3) - 08/05/05 08:57 - [ 5] Visit: 03 Visit Priority: 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.2232, 0.24075 see below ------------------------------------------------------------------------------------------------------------------------------------ 2 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0.0744, 0.1548 see below ------------------------------------------------------------------------------------------------------------------------------------ 3 SN1006-NW ACS/WFC ACCUM WFC F658N CR-SPLIT=NO 1 3300 S POS TARG 0, 0 see below ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN1006-NW 1 ACS/WFC ACCUM WFC F658N none none none none 1 2766.0 S SN1006-NW 2 ACS/WFC ACCUM WFC F658N none none none none 2 2828.0 S SN1006-NW 3 ACS/WFC ACCUM WFC F658N none none none none 3 2828.0 S 10577( 3) - 08/05/05 08:57 - [ 6] Summary Form for Proposal 10577 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements POS TARG 0, 0 POS TARG 0.1488, 0.08595 POS TARG 0.2232, 0.24075 POS TARG 0.0744, 0.1548 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F658N ------------------------------------------------------------------------------------------------------------------------------------ Target Names SN1006-NW ------------------------------------------------------------------------------------------------------------------------------------