Scientific Category is a required field. Science Keywords: Select from 2 to 5 items. 0 Assigned ID: 1233 ----- Attempting Submission 1 (Thu May 25 11:44:42 GMT 2017) ----- Joint NRAO/HST Re-submission of the Phase II proposa,l, with suggested modifications to the ORIENT 1566330026 ----- Attempting Submission 1 (Wed Jul 05 21:46:09 GMT 2017) ----- ----- Attempting Submission 2 (Wed Aug 23 22:51:43 GMT 2017) ----- Using the VLA, we have found that the OH 1.667 GHz maser line (OHM) is a viable new avenue to identify molecular outflows and study AGN-feedback. We tentatively detect high-velocity wings in the OHM spectrum of IRAS 03158+4227, whose velocity profile matches with its OH 119 micron absorption line profile, but is limited by the modest SNR of our detection. This suggests a physical relation between the outflowing cold gas, and compact circumcuclear molecular gas regions. We here request further observations of the OHM emission in IRAS 03158+4227, to confirm this correspondence, and establish the OHM feature as a reliable outflow diagnostic. We also request UV to near-infrared HST observations of IRAS 03158+4227 for the first time, so as to constrain the young and old stellar populations, study the tidal tails detected in CO(1-0), and detect the impact of kpc scale outflows on star formation in outflow hosts. We therefore propose for joint VLA- HST observations of IRAS 03158+4227 (z = 0.13), hosting the most extreme molecular outflow in the local Universe, in order to further develop our understanding of AGN feedback, its impact on its host galaxy at all spatial scales. We were allocated two orbits of HST imaging for IRAS 03158+4227 in the broadband filters WFC3-IR/F160W, ACS/F814W, and the WFC3-UVIS/F275W. Our target source hosts the most powerful molecular outflow in the local universe, as per our CO(1-0) observations. Since we have spatially resolved CO(1-0) observations of the molecular outflow in IRAS 03158+4227, it is the ideal target in which to study the impact of the ~kpc scale outflows on the star formation. Imaging with WFC3-UVIS using F275W filter traces the rest-frame near-UV emission, and therefore the young stellar population formed in recent starburst activity. At a redshift of z ~ 0.1344, the H-alpha line redshifts into the F814W band, and thus displays the active star formation. Finally, imaging with the F160W image will allow us to correct for the extinction in the F275W/F814W filters. Together, these enable us to characterize the young and old stellar populations, and the near-IR dust extinction on small spatial scales <~ 0.13'' (~ 300 pc at z ~ 0.134). Additionally, IRAS 03158+4227 is a merger with a companion at ~ 42 kpc distance (~ 20 arcsec), and we have detected molecular gas tidal tails in the CO(1-0) emission. Our planned observations are sensitive to the low-surface brightness extended star formation and emission along the molecular `bridge', which could not be detected at high significance with SDSS, and would be highly complementary to our CO(1-0) observations. Observations in each band will be split into at least three dithered sub-exposures to allow cosmic ray subtraction and to remove hot pixels. We choose to center off-centre from the galaxy, so as to avoid placing the any of the extended galaxy structure on the gap between the CCDs. We plan to image in the ACS/F814W filter in one orbit, and image using the WFC3 UVIS/IR filters in the second orbit. Our exposure times were derived using previous SDSS imaging. 6 false false false false false false SUPPORTED GALAXY TIDAL TAIL ULTRALUMINOUS IR GAL YES This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 ACS/WFC Imaging No No F814W WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F275W POS-TARG DITHER 0.262 LINE 0.192 false false 68.14 4 18.39 ACS-WFC-DITHER-BOX 1 false POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 2 false POS-TARG DITHER 0.135 LINE false false 3 46.84 WFC3-UVIS-DITHER-LINE-3PT 3 false 1502988489783 The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. /private/var/folders/lk/myfbgw9x3r78shd3vy9wmnh40000gn/T/OPVisit3761376560786048472.xml (Tic-Visit :proposal-id 14938 :visit-id "04" :proposal-version -1 :trans-version "20170613" :date "17-Aug-2017 12:48:09.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2203088 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14938 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 14938 :visit-id "04" :obset-id "A4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14938 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2954 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3298 :pcs-gap 0 ) (Tic-Orbit :proposal-id 14938 :visit-id "04" :orbit-number 2 :pcs-time 333 :si-vis-utilization 2950 :al-overhead-at-end 0 :internal-dur-at-end 615 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3298 :pcs-gap 0 ) true 2 0