11681( 7) - 26-Nov-2008 14:57:23 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11681 Version: 7 Check-in Time: 26-Nov-2008 14:57:23 STScI Edit Number: 5 Title A Search for Ultraviolet Emission Filaments in Cool Core Clusters ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. William B. Sparks Space Telescope Science Institute CoI: Dr. Megan Donahue Michigan State University N CoI: Dr. James E. Pringle University of Cambridge N CoI: Prof. Mark Voit Michigan State University N CoI: Dr. Robert F. Carswell University of Cambridge N ------------------------------------------------------------------------------------ Abstract We propose to use ACS SBC imaging to seek ultraviolet CIV emission filaments in clusters of galaxies exhibiting strong cool-core X-ray emission and optical line emission filaments. These short observations are crafted to test thermal conduction models for the filament excitation, and can significantly impact our understanding of the overall physical processes dominant in the galaxy cluster ISM. ------------------------------------------------------------------------------------ Observations Description ------------------------ Our strategy is to use two SBC long-pass filters, F150LP and F165LP, in tandem, to allow us to separate line and continuum emission. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11681( 7) - 26-Nov-2008 14:57:23 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 M87-INNER CLUSTER OF GALAXIES, RA=12H30M49.3000S +/- 0.1", J2000 V = 16.7 +/- 0.5 mag given is nucleus COOLING FLOW, DEC=+12D23'35.00" +/- 0.1" CONDUCTION FRONT, EMISSION LINE NEBULA, FILAMENT Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 2 M87-OUTER CLUSTER OF GALAXIES, RA=12H30M51.0000S +/- 0.1", J2000 V = 16.7 +/- 0.5 mag given is nucleus COOLING FLOW, DEC=+12D23'17.00" +/- 0.1" CONDUCTION FRONT, EMISSION LINE NEBULA, FILAMENT Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-4696 CLUSTER OF GALAXIES, RA=12H48M49.3000S +/- 0.1", J2000 V = 12 CONDUCTION FRONT, DEC=-41D18'40.00" +/- 0.1" COOLING FLOW, EMISSION LINE NEBULA, FILAMENT Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 4 ABELL-1795 CLUSTER OF GALAXIES, RA=13H48M52.4300S +/- 0.1", J2000 V = 13.9 CONDUCTION FRONT, DEC=+26D35'34.00" +/- 0.1" COOLING FLOW, EMISSION LINE NEBULA, FILAMENT Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 5 ABELL-2597 CLUSTER OF GALAXIES, RA=23H25M19.8250S +/- 0.1", J2000 V = 15.4 CONDUCTION FRONT, DEC=-12D07'26.40" +/- 0.1" COOLING FLOW, EMISSION LINE NEBULA, FILAMENT Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 11681( 7) - 26-Nov-2008 14:57:23 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 2 Point_Spacing 0.472 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 44.4 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 11681( 7) - 26-Nov-2008 14:57:23 - [ 4] Visit: 01 Visit Requirements: GYRO MODE 2G 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 M87-INNER ACS/SBC ACCUM SBC-FIX F150LP 1 850 S GS ACQ SCENARIO BASE1T3; PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 M87-INNER ACS/SBC ACCUM SBC-FIX F165LP 1 450 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 | ------------------------------------------------------------------------------------------------------------------------------------ M87-INNER 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A M87-INNER 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A M87-INNER 2 ACS/SBC ACCUM SBC-FIX F165LP 1 none none none 1 N/A M87-INNER 2 ACS/SBC ACCUM SBC-FIX F165LP 2 none none none 1 N/A 11681( 7) - 26-Nov-2008 14:57:23 - [ 5] Visit: 02 Visit Requirements: GYRO MODE 2G 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 M87-OUTER ACS/SBC ACCUM SBC-FIX F150LP 1 815 S PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 M87-OUTER ACS/SBC ACCUM SBC-FIX F165LP 1 435 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 | ------------------------------------------------------------------------------------------------------------------------------------ M87-OUTER 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A M87-OUTER 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A M87-OUTER 2 ACS/SBC ACCUM SBC-FIX F165LP 1 none none none 1 N/A M87-OUTER 2 ACS/SBC ACCUM SBC-FIX F165LP 2 none none none 1 N/A 11681( 7) - 26-Nov-2008 14:57:23 - [ 6] Visit: 03 Visit Requirements: GYRO MODE 2G 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 NGC-4696 ACS/SBC ACCUM SBC-FIX F150LP 1 890 S PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-4696 ACS/SBC ACCUM SBC-FIX F165LP 1 470 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-4696 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A NGC-4696 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A NGC-4696 2 ACS/SBC ACCUM SBC-FIX F165LP 1 none none none 1 N/A NGC-4696 2 ACS/SBC ACCUM SBC-FIX F165LP 2 none none none 1 N/A 11681( 7) - 26-Nov-2008 14:57:23 - [ 7] Visit: 04 Visit Requirements: GYRO MODE 2G 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 ABELL-1795 ACS/SBC ACCUM SBC-FIX F150LP 1 650 S PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL-1795 ACS/SBC ACCUM SBC-FIX F165LP 1 650 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL-1795 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A ABELL-1795 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A ABELL-1795 2 ACS/SBC ACCUM SBC-FIX F165LP 1 none none none 1 N/A ABELL-1795 2 ACS/SBC ACCUM SBC-FIX F165LP 2 none none none 1 N/A 11681( 7) - 26-Nov-2008 14:57:23 - [ 8] Visit: 05 Visit Requirements: GYRO MODE 2G 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 ABELL-2597 ACS/SBC ACCUM SBC-FIX F150LP 1 650 S PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ 2 ABELL-2597 ACS/SBC ACCUM SBC-FIX F165LP 1 650 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 | ------------------------------------------------------------------------------------------------------------------------------------ ABELL-2597 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A ABELL-2597 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A ABELL-2597 2 ACS/SBC ACCUM SBC-FIX F165LP 1 none none none 1 N/A ABELL-2597 2 ACS/SBC ACCUM SBC-FIX F165LP 2 none none none 1 N/A 11681( 7) - 26-Nov-2008 14:57:23 - [ 9] Summary Form for Proposal 11681 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures SBC-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1T3, GYRO MODE 2G, PATTERN 1 1-2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F150LP, F165LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names ABELL-1795, ABELL-2597, M87-INNER, M87-OUTER, NGC-4696 ------------------------------------------------------------------------------------------------------------------------------------