0 Assigned ID: 1334 ----- Attempting Submission 1 (Fri Mar 01 00:25:23 GMT 2013) ----- HST Phase I Proposal 1334 (3256.apt) successfully submitted. ----- Attempting Submission 2 (Fri Mar 01 23:43:03 GMT 2013) ----- 0 ----- Attempting Submission 1 (Tue Jun 25 01:04:24 GMT 2013) ----- Warnings generated by use of Quad filters, quad apertures with <3" dither pattern used on target. Investigating the Impact of Merger Driven Shocks 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. 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. n/a n/a n/a ISM IN EXTERNAL GALAXIES Default false false false false false SUPPORTED GALAXY INTERACTING GALAXY SHOCK FRONT STARBURST ULTRALUMINOUS IR GAL This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 WFC3/UVIS Imaging No No FQ492N WFC3/UVIS Imaging No No FQ508N WFC3/UVIS Imaging No No FQ634N WFC3/UVIS Imaging No No F665N WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F621M POS-TARG MOSAIC DITHER 2 2.414 WFC3-UVIS-DITHER-LINE false true 0.145 4 85.759 POS-TARG WFC3-UVIS-GAP-LINE 46.84 3 false POS-TARG MOSAIC DITHER 4 2.414 WFC3-UVIS-DITHER-BOX false 81.785 true 0.112 0.173 2 85.759 POS-TARG WFC3-UVIS-GAP-LINE 23.884 2 true POS-TARG MOSAIC DITHER 4 2.414 WFC3-UVIS-DITHER-BOX false 81.785 true 0.112 0.173 3 85.759 POS-TARG WFC3-UVIS-GAP-LINE 23.884 5 false /Users/jrich/work/proposals/hst/cycle21_phaseII/OP-cache/13333-v01.xml The scheduling data was generated by CASM 21.2. CASM was run in Phase II mode. 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CASM was run in Phase II mode. 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