13333( 2) - 25-Jun-2013 10:57:08 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13333 Version: 2 Check-in Time: 25-Jun-2013 10:57:08 STScI Edit Number: 0 Title Investigating the Impact of Merger Driven Shocks ------------------------------------------------------------------------------------ Type Cycle GO 21 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Jeffrey Austin Sterling Rich Carnegie Institution of Washington Y Jr. CoI: Dr. Lee Armus California Institute of Technology N CoI: Dr. Philip N. Appleton California Institute of Technology N CoI: Prof. Michael A. Dopita Australian National University N CoI: Prof. Aaron S. Evans The University of Virginia N CoI: Dr. Justin H. Howell California Institute of Technology N CoI: Dr. Hanae Inami National Optical Astronomy Observatory, N AURA CoI: Dr. Tanio Diaz-Santos California Institute of Technology N CoI: Dr. Lisa Kewley University of Hawaii N CoI: Dr. Jason A. Surace California Institute of Technology N CoI: Mr. George Privon The University of Virginia N CoI: Dr. Kazushi Sakamoto Academia Sinica, Institute of Astronomy N and Astrophysics CoI: Dr. Joseph M. Mazzarella Jet Propulsion Laboratory N ------------------------------------------------------------------------------------ Abstract Integral field spectroscopy of NGC 3256, the most luminous system in the local universe (z<0.01), reveals a blended, composite starburst/shock spectrum with no trace of an AGN. Galaxy-wide shocks in starbursts and merging systems like NGC 3256 are a prime source of feedback, though the impact that such shocks have on the ISM and their effects on star formation remain poorly understood. The combination of wide-field, narrow-band and high-resolution achieved by WFC3 imaging allows us to probe the relationship between shocks and their hosts better than ever before. We propose to image NGC 3256 in several diagnostic lines including [O III], H-beta, [N II], H-alpha, [S II] and [O I]. High-resolution WFC3 observations will enable us to spatially resolve shocked vs. star forming regions, allowing us to isolate the superwind and starburst-ionized gas for the first time, and to estimate the total energy budget and physical characteristics of the wind and shocks in NGC 3256. A comparison with complementary data, including HST, Spitzer, Chandra and ALMA observations, will also allow us to trace obscured and unobscured star formation and their proximity to shocks and to search for shocks driven by merger-induced gas flows which could help transport gas to the observed nuclear starbursts in U/LIRGs. As the nearest extreme starburst, an infrared luminous galaxy and the host of a galactic superwind, NGC 3256 is ideally suited for an analysis of the impact of shocks and large-scale gas flows on the surrounding ISM and star formation and will serve as a key laboratory for the detailed study of a fundamental feedback process in LIRGs, which dominate cosmic star formation at high redshift. ------------------------------------------------------------------------------------ Observations Description 13333( 2) - 25-Jun-2013 10:57:08 - [ 2] ------------------------ The merging galaxy NGC 3256 is to be observed in 5 quad & narrow band filters, FQ492N, FQ508N, FQ634N, F665N and F673N, corresponding to Hbeta, [OIII], [OI], [NII]+Halpha and [SII] emission. The merger is also to be imaged in two medium band filters, F467M and F621M, to help establish continuum regions. An 8-point dither pattern is to be used for the quad filters (FQ492N, FQ508N & FQ634N), a 3-point gap-filling dither is to be used for the medium filters (F467M & F621M) and the narrow filter F665N. A 4-point gap-filling dither is to be used for the narrow filter F673N. Real Time Justification ----------------------- n/a Calibration Justification ------------------------- n/a Additional Comments ------------------- n/a ------------------------------------------------------------------------------------ 13333( 2) - 25-Jun-2013 10:57:08 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3256 GALAXY, INTERACTING RA=10H27M51.2500S, J2000 V = 11.33 GALAXY, SHOCK FRONT, DEC=-43D54'15.00" STARBURST, ULTRALUMINOUS IR GAL Reference Frame: Other: SIMBAD Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 13333( 2) - 25-Jun-2013 10:57:08 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-GAP-LINE Pattern_Purpose MOSAIC Number_Of_Points 4 Point_Spacing 2.414 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.759 Angle_Between_Sides Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-GAP-LINE WFC3-UVIS-DITHER-BOX Pattern_Purpose MOSAIC DITHER Number_Of_Points 2 4 Point_Spacing 2.414 0.173 Line_Spacing 0.112 Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 85.759 23.884 Angle_Between_Sides 81.785 Center_Pattern YES NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 5 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-UVIS-GAP-LINE Pattern_Purpose MOSAIC Number_Of_Points 3 Point_Spacing 2.414 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 85.759 Angle_Between_Sides Center_Pattern YES ------------------------------------------------------------------------------------------------------------------------------------ 13333( 2) - 25-Jun-2013 10:57:08 - [ 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| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC3256 WFC3/UVI ACCUM UVIS-QUAD FQ492N FLASH=9 1 900 S PATTERN 2 1 S see below (7535 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3256 WFC3/UVI ACCUM UVIS1 F673N FLASH=9 1 750 S PATTERN 3 2 S see below (3295 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC3256 WFC3/UVI ACCUM UVIS1 F621M FLASH=10 1 150 S PATTERN 5 3 S see below (805 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC3256 WFC3/UVI ACCUM UVIS-QUAD FQ508N FLASH=9 1 900 S PATTERN 2 4 S see below (7756 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 1 1 none none 1 908.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 1 2 none none 1 908.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 1 3 none none 1 908.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 1 4 none none 2 945.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 2 1 none none 2 945.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 2 2 none none 2 945.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 2 3 none none 3 988.0 S S D NGC3256 1 WFC3/UVI ACCUM UVIS-QUA FQ492N 2 4 none none 3 988.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS1 F673N 1 none none none 3 838.0 S S NGC3256 2 WFC3/UVI ACCUM UVIS1 F673N 2 none none none 4 819.0 S S 13333( 2) - 25-Jun-2013 10:57:08 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC3256 2 WFC3/UVI ACCUM UVIS1 F673N 3 none none none 4 819.0 S S NGC3256 2 WFC3/UVI ACCUM UVIS1 F673N 4 none none none 4 819.0 S S NGC3256 3 WFC3/UVI ACCUM UVIS1 F621M 1 none none none 4 219.0 S S NGC3256 3 WFC3/UVI ACCUM UVIS1 F621M 2 none none none 5 293.0 S S NGC3256 3 WFC3/UVI ACCUM UVIS1 F621M 3 none none none 5 293.0 S S NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 1 1 none none 5 1043.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 1 2 none none 5 1043.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 1 3 none none 6 945.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 1 4 none none 6 945.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 2 1 none none 6 945.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 2 2 none none 7 945.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 2 3 none none 7 945.0 S S D NGC3256 4 WFC3/UVI ACCUM UVIS-QUA FQ508N 2 4 none none 7 945.0 S S D 13333( 2) - 25-Jun-2013 10:57:08 - [ 7] 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 NGC3256 WFC3/UVI ACCUM UVIS1 F665N FLASH=11 1 375 S PATTERN 5 1 S see below (1311 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3256 WFC3/UVI ACCUM UVIS-QUAD FQ634N FLASH=11 1 500 S PATTERN 2 2 S see below (4183 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC3256 WFC3/UVI ACCUM UVIS1 F467M FLASH=8 1 725 S PATTERN 5 3 S see below (2172 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC3256 1 WFC3/UVI ACCUM UVIS1 F665N 1 none none none 1 437.0 S S NGC3256 1 WFC3/UVI ACCUM UVIS1 F665N 2 none none none 1 437.0 S S NGC3256 1 WFC3/UVI ACCUM UVIS1 F665N 3 none none none 1 437.0 S S NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 1 1 none none 1 562.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 1 2 none none 1 562.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 1 3 none none 2 512.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 1 4 none none 2 512.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 2 1 none none 2 512.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 2 2 none none 2 512.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 2 3 none none 2 512.0 S S D NGC3256 2 WFC3/UVI ACCUM UVIS-QUA FQ634N 2 4 none none 3 499.0 S S D NGC3256 3 WFC3/UVI ACCUM UVIS1 F467M 1 none none none 3 724.0 S S 13333( 2) - 25-Jun-2013 10:57:08 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC3256 3 WFC3/UVI ACCUM UVIS1 F467M 2 none none none 3 724.0 S S NGC3256 3 WFC3/UVI ACCUM UVIS1 F467M 3 none none none 3 724.0 S S 13333( 2) - 25-Jun-2013 10:57:08 - [ 9] Summary Form for Proposal 13333 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS-QUAD, UVIS1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=10, FLASH=11, FLASH=8, FLASH=9 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 2 1, PATTERN 2 2, PATTERN 2 4, PATTERN 3 2, PATTERN 5 1, PATTERN 5 3 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F467M, F621M, F665N, F673N, FQ492N, FQ508N, FQ634N ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC3256 ------------------------------------------------------------------------------------------------------------------------------------