12497( 3) - 21-Jul-2011 17:39:14 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12497 Version: 3 Check-in Time: 21-Jul-2011 17:39:14 STScI Edit Number: 1 Title Constraining Stellar Feedback : A Census of Shock-ionized Gas in Nearby Starbursts Galaxies. ------------------------------------------------------------------------------------ Type Cycle GO 19 ------------------------------------------------------------------------------------ Investigators Contact? PI: Mr. Sungryong Hong National Optical Astronomy Observatory, AURA CoI: Prof. Daniela Calzetti University of Massachusetts N CoI: Prof. John S. Gallagher III University of Wisconsin - Madison N CoI: Dr. Mark S. Westmoquette European Southern Observatory - Germany N ------------------------------------------------------------------------------------ Abstract Stellar feedback is one of the most important engines of galaxy formation and evolution. However, the observational constraints are not yet established. We propose to investigate this problem by observing 2 nearby star-forming galaxies, selected to fill an unexplored niche in the key 2-dimensional parameter space of host galaxyÕs stellar mass and star formation rate density. From the WFC3 narrow-band observations in the light of H-alpha, H-beta, [OIII], and [SII], we will : (1) produce the line diagnostic diagrams, [O III](5007)/H-beta vs. [S II](6716+6731)/H-alpha, (2) discriminate the feedback-driven shock-ionized component from the ionized gas, (3) measure the energy budget of the shocks from star forming feedback. Those observations, joined by our previous data and studies on nearby starburst galaxies, will yield the efficiency of the feedback, i.e. the fraction of the star formationÕs mechanical energy transported out of the starburst site rather than radiated away, as a function of both stellar mass and star formation rate intensity. The high angular resolution of HST is crucial for separating the shock fronts (~10pc = 0.2ÕÕ at 10 Mpc) from the photo-ionized regions. This project will provide the quantitative foundation of stellar feedback and a gauge for determining the role of feedback in the energetics, structure, and star formation history of galaxies. ------------------------------------------------------------------------------------ Observations Description ------------------------ The two starburst galaxies, MRK-178 and NGC4861, will be observed using the four narrow-band filters, F487N, F502N, F657N(or F658N), and F673N and two broad and medium filters, F814W and F547M. The 4 orbits are assigned to each galaxy. The observing strategy is the same with the WFC3 ERS 1, GO11360. The field of view of WFC3/UVIS is enough to cover our target, the starburst region of each galaxy. The observed H-apha wavelenghs are 6568.5 for Mrk178 and 6581.3 for NGC4861, which are fit within the F657N and F658N throughputs. Real Time Justification 12497( 3) - 21-Jul-2011 17:39:14 - [ 2] ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12497( 3) - 21-Jul-2011 17:39:14 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 MRK-178 GALAXY, EMISSION LINE RA=11H33M29.9458S +/- 0.1", J2000 V = 14.50 +/- 0.1 NEBULA, STAR FORMING DEC=+49D14'34.27" +/- 0.1" REGION, STARBURST Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-4861 GALAXY, EMISSION LINE RA=12H59M1.5738S +/- 0.1", J2000 V = 12.32 +/- 0.1 NEBULA, STAR FORMING DEC=+34D51'22.98" +/- 0.1" REGION, STARBURST Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12497( 3) - 21-Jul-2011 17:39:14 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-DITHER-LINE-3PT Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.135 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 46.84 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 12497( 3) - 21-Jul-2011 17:39:14 - [ 5] Visit: 01 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 MRK-178 WFC3/UVI ACCUM UVIS-FIX F487N 1 2400 S PATTERN 1 1 S see below ------------------------------------------------------------------------------------------------------------------------------------ 2 MRK-178 WFC3/UVI ACCUM UVIS-FIX F673N 1 2400 S PATTERN 1 2 S see below ------------------------------------------------------------------------------------------------------------------------------------ 3 MRK-178 WFC3/UVI ACCUM UVIS-FIX F657N 1 1200 S PATTERN 1 3 S see below ------------------------------------------------------------------------------------------------------------------------------------ 4 MRK-178 WFC3/UVI ACCUM UVIS-FIX F502N 1 1200 S PATTERN 1 4 S see below ------------------------------------------------------------------------------------------------------------------------------------ 5 MRK-178 WFC3/UVI ACCUM UVIS-FIX F547M 1 600 S PATTERN 1 5 S see below ------------------------------------------------------------------------------------------------------------------------------------ 6 MRK-178 WFC3/UVI ACCUM UVIS-FIX F814W 1 400 S PATTERN 1 6 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-178 1 WFC3/UVI ACCUM UVIS-FIX F487N 1 none none none 1 930.0 S S MRK-178 1 WFC3/UVI ACCUM UVIS-FIX F487N 2 none none none 1 930.0 S S MRK-178 1 WFC3/UVI ACCUM UVIS-FIX F487N 3 none none none 1 930.0 S S MRK-178 2 WFC3/UVI ACCUM UVIS-FIX F673N 1 none none none 2 968.0 S S MRK-178 2 WFC3/UVI ACCUM UVIS-FIX F673N 2 none none none 2 968.0 S S MRK-178 2 WFC3/UVI ACCUM UVIS-FIX F673N 3 none none none 2 968.0 S S MRK-178 3 WFC3/UVI ACCUM UVIS-FIX F657N 1 none none none 3 400.0 S S MRK-178 3 WFC3/UVI ACCUM UVIS-FIX F657N 2 none none none 3 400.0 S S MRK-178 3 WFC3/UVI ACCUM UVIS-FIX F657N 3 none none none 3 400.0 S S 12497( 3) - 21-Jul-2011 17:39:14 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ MRK-178 4 WFC3/UVI ACCUM UVIS-FIX F502N 1 none none none 3 430.0 S S MRK-178 4 WFC3/UVI ACCUM UVIS-FIX F502N 2 none none none 3 430.0 S S MRK-178 4 WFC3/UVI ACCUM UVIS-FIX F502N 3 none none none 3 430.0 S S MRK-178 5 WFC3/UVI ACCUM UVIS-FIX F547M 1 none none none 4 484.0 S S MRK-178 5 WFC3/UVI ACCUM UVIS-FIX F547M 2 none none none 4 484.0 S S MRK-178 5 WFC3/UVI ACCUM UVIS-FIX F547M 3 none none none 4 484.0 S S MRK-178 6 WFC3/UVI ACCUM UVIS-FIX F814W 1 none none none 4 348 S S MRK-178 6 WFC3/UVI ACCUM UVIS-FIX F814W 2 none none none 4 348 S S MRK-178 6 WFC3/UVI ACCUM UVIS-FIX F814W 3 none none none 4 348 S S 12497( 3) - 21-Jul-2011 17:39:14 - [ 7] Visit: 02 Visit Requirements: ORIENT 320D TO 360 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 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F487N 1 2400 S GS ACQ SCENARIO BASE1B3; S see below PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F673N 1 2400 S PATTERN 1 2 S see below ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F658N 1 1200 S PATTERN 1 3 S see below ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F502N 1 1200 S PATTERN 1 4 S see below ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F547M 1 600 S PATTERN 1 5 S see below ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-4861 WFC3/UVI ACCUM UVIS-FIX F814W 1 400 S PATTERN 1 6 S 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-4861 1 WFC3/UVI ACCUM UVIS-FIX F487N 1 none none none 1 892.0 S S NGC-4861 1 WFC3/UVI ACCUM UVIS-FIX F487N 2 none none none 1 892.0 S S NGC-4861 1 WFC3/UVI ACCUM UVIS-FIX F487N 3 none none none 1 892.0 S S NGC-4861 2 WFC3/UVI ACCUM UVIS-FIX F673N 1 none none none 2 929.0 S S NGC-4861 2 WFC3/UVI ACCUM UVIS-FIX F673N 2 none none none 2 929.0 S S NGC-4861 2 WFC3/UVI ACCUM UVIS-FIX F673N 3 none none none 2 929.0 S S NGC-4861 3 WFC3/UVI ACCUM UVIS-FIX F658N 1 none none none 3 393.0 S S NGC-4861 3 WFC3/UVI ACCUM UVIS-FIX F658N 2 none none none 3 393.0 S S NGC-4861 3 WFC3/UVI ACCUM UVIS-FIX F658N 3 none none none 3 393.0 S S 12497( 3) - 21-Jul-2011 17:39:14 - [ 8] 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-4861 4 WFC3/UVI ACCUM UVIS-FIX F502N 1 none none none 3 400 S S NGC-4861 4 WFC3/UVI ACCUM UVIS-FIX F502N 2 none none none 3 400 S S NGC-4861 4 WFC3/UVI ACCUM UVIS-FIX F502N 3 none none none 3 400 S S NGC-4861 5 WFC3/UVI ACCUM UVIS-FIX F547M 1 none none none 4 446.0 S S NGC-4861 5 WFC3/UVI ACCUM UVIS-FIX F547M 2 none none none 4 446.0 S S NGC-4861 5 WFC3/UVI ACCUM UVIS-FIX F547M 3 none none none 4 446.0 S S NGC-4861 6 WFC3/UVI ACCUM UVIS-FIX F814W 1 none none none 4 348 S S NGC-4861 6 WFC3/UVI ACCUM UVIS-FIX F814W 2 none none none 4 348 S S NGC-4861 6 WFC3/UVI ACCUM UVIS-FIX F814W 3 none none none 4 348 S S 12497( 3) - 21-Jul-2011 17:39:14 - [ 9] Summary Form for Proposal 12497 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 320D TO 360 D, PATTERN 1 1, PATTERN 1 2, PATTERN 1 3, PATTERN 1 4, PATTERN 1 5, PATTERN 1 6 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F487N, F502N, F547M, F657N, F658N, F673N, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names MRK-178, NGC-4861 ------------------------------------------------------------------------------------------------------------------------------------