NOAO >   Observing Info >   Approved Programs >   2013A-0311

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Proposal Information for 2013A-0311


PI: Dinalva A Sales, Rochester Institute of Technology (Physics), dassps@rit.edu
Address: Department of Physics, College of Science, 85 Lomb Memorial Drive, Rochester, NY, 14623-5603, USA

CoI: Andrew Robinson, Rochester Institute of Technology (Physics)
CoI: Rogemar Riffel, Universidade Federal Santa Maria (UFSM)
CoI: Jack F Gallimore, Bucknell University
CoI: Cris O'Dea, Rochester Institute of Technology (Physics)
CoI: Stefi Baum, Rochester Institute of Technology (Physics)

Title: Mapping the Inner Structure of OH Megamaser Merger Galaxies

Abstract: We propose observations with GMOS IFU emission-line spectroscopy to map the kinematics and ionization structure of the kpc-scale extended emission line regions revealed by HST imaging in three OH Megamaser galaxies (OHMGs). OHMGs may represent a critical, short-lived transition phase in which massive, dense concentrations of molecular gas are triggering intense episodes of star formation and the onset of AGN fueling, resulting in rapid black hole growth. The proposed observations will form a key component of a large ongoing study of a complete sample of OHMGs using HST, Spitzer, Herschel and EVLA which has the aim of relating the merger state of the OHMG to the growth phase of the AGN, the nuclear starburst, and the concentration and structure of the ionized gas on sub-kiloparsec scales. The targets were selected to represent a range of merger states and relative strength of starburst or AGN activity. The IFU data will be used to determine the velocity field, search for outflows or inflows, and identify the ionization sources of the ionized gas and kinematic components.


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NOAO >   Observing Info >   Approved Programs >   2013A-0311

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