12373( 3) - 01-Nov-2010 18:25:06 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12373 Version: 3 Check-in Time: 01-Nov-2010 18:25:06 STScI Edit Number: 0 Title AGN heating and cooling in the most luminous group cool core ------------------------------------------------------------------------------------ Type Cycle GO 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Ming Sun The University of Virginia CoI: Dr. Paul Nulson Smithsonian Institution Astrophysical N Observatory CoI: Dr. Tracy Clarke Naval Research Laboratory N CoI: Dr. William R. Forman Smithsonian Institution Astrophysical N Observatory CoI: Dr. Craig L. Sarazin The University of Virginia N CoI: Prof. Robert W. O'Connell The University of Virginia N ------------------------------------------------------------------------------------ Abstract Outbursts of SMBHs have significant impact on structure formation and evolution. Their imprint on ICM (e.g., shocks, cavities, elevated entropy) provides an historical chronicle of the SMBH activity. Because of the expected bigger impact of AGN heating on the group gas than the cluster gas, group cool cores are ideal places to study SMBH outbursts. We propose an 89 ks observation of the most X-ray luminous group cool core at z<0.05 (also the second brightest one) that only has 7 ks Chandra data. It also hosts one of the most spectacular Ha filaments in nearby groups. The requested ACIS data, in combination with the joint VLA and HST observations, will be used to examine cavities, shocks, the relation between gas in different phases and star formation, and the AGN activity history. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will use WFC3/UVIS and ACS to study star formation in the cool core of A3581. We plan deep exposures in the F336W (U) band and supporting exposures on the F475W and F814W with ACS. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12373( 3) - 01-Nov-2010 18:25:06 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 A3581 GALAXY, COOLING FLOW, RA=14H07M29.6550S +/- 0.1", J2000 V = 12.9 +/- 0.5 ELLIPTICAL, STAR DEC=-27D01'2.92" +/- 0.1" FORMING REGION Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 A3581-2 GALAXY, COOLING FLOW, RA=14H07M29.7880S +/- 0.1", J2000 V = 12.9 +/- 0.5 ELLIPTICAL, STAR DEC=-27D01'4.90" +/- 0.1" FORMING REGION Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12373( 3) - 01-Nov-2010 18:25:06 - [ 3] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-MOS-DITH-LINE Pattern_Purpose MOSAIC Number_Of_Points 3 Point_Spacing 2.4 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.754 Angle_Between_Sides Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ 12373( 3) - 01-Nov-2010 18:25:06 - [ 4] Visit: 01 Visit Requirements: ORIENT 0.0D TO 30 D; ORIENT 60D TO 140 D; ORIENT 200D TO 270 D; ORIENT 300D TO 310 D; ORIENT 350D TO 359.9 D 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 A3581 WFC3/UVI ACCUM UVIS F300X 1 886 S PATTERN 2 1 S ------------------------------------------------------------------------------------------------------------------------------------ 2 A3581-2 WFC3/UVI ACCUM UVIS F300X 1 923 S PATTERN 2 2 S ------------------------------------------------------------------------------------------------------------------------------------ 3 A3581 WFC3/UVI ACCUM UVIS F814W 1 348 S PATTERN 2 3 S ------------------------------------------------------------------------------------------------------------------------------------ 4 A3581 WFC3/UVI ACCUM UVIS F555W 1 445 S PATTERN 2 4 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 | ------------------------------------------------------------------------------------------------------------------------------------ A3581 1 WFC3/UVI ACCUM UVIS F300X 1 none none none 1 N/A S A3581 1 WFC3/UVI ACCUM UVIS F300X 2 none none none 1 N/A S A3581 1 WFC3/UVI ACCUM UVIS F300X 3 none none none 1 N/A S A3581-2 2 WFC3/UVI ACCUM UVIS F300X 1 none none none 2 N/A S A3581-2 2 WFC3/UVI ACCUM UVIS F300X 2 none none none 2 N/A S A3581-2 2 WFC3/UVI ACCUM UVIS F300X 3 none none none 2 N/A S A3581 3 WFC3/UVI ACCUM UVIS F814W 1 none none none 3 N/A S A3581 3 WFC3/UVI ACCUM UVIS F814W 2 none none none 3 N/A S A3581 3 WFC3/UVI ACCUM UVIS F814W 3 none none none 3 N/A S A3581 4 WFC3/UVI ACCUM UVIS F555W 1 none none none 3 N/A S A3581 4 WFC3/UVI ACCUM UVIS F555W 2 none none none 3 N/A S 12373( 3) - 01-Nov-2010 18:25:06 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ A3581 4 WFC3/UVI ACCUM UVIS F555W 3 none none none 3 N/A S 12373( 3) - 01-Nov-2010 18:25:06 - [ 6] Summary Form for Proposal 12373 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 0.0D TO 30 D, ORIENT 200D TO 270 D, ORIENT 300D TO 310 D, ORIENT 350D TO 359.9 D, ORIENT 60D TO 140 D, PATTERN 2 1, PATTERN 2 2, PATTERN 2 3, PATTERN 2 4 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F300X, F555W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names A3581, A3581-2 ------------------------------------------------------------------------------------------------------------------------------------