NOAO >   Observing Info >   Approved Programs >   2013A-0331

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Proposal Information for 2013A-0331


PI: Davide Lena, Rochester Institute of Technology (Physics), dxl1840@g.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: Thaisa Storchi-Bergmann, Universidade Federal do Rio Grande do Sul (UFRGS)
CoI: Rogemar A. Riffel, Universidade Federal Santa Maria (UFSM)
CoI: Trent Seelig, Rochester Institute of Technology (Physics)

Title: Mapping sub-kpc gas flows in a sample of nearby, hard X-ray selected AGNs.

Abstract: We propose GMOS IFU emission-line spectroscopy of the gas within the inner kiloparsec of the nearby active galaxies NGC3227, NGC3516, NGC3786, NGC4593 and NGC5899. This is part of a program of optical and NIR IFU spectroscopy to map the kinematics and excitation conditions of the circum-nuclear gas in a complete, distance limited sample of hard-x ray selected active galaxies. Our main goal is to study AGN "feeding" and "feedback" processes on sub-kiloparsec scales for a range of activity types and luminosities. We will use the data to determine the gas velocity field and hence isolate non-rotational motions such as inward streaming and/or outflows. Emission line diagnostics will be used to identify the ionization sources of the kinematic components and constrain the physical parameters of the inflows and outflows such as the geometry, gas density and mass flow rate. With this information for the sample as a whole, combined with results from our earlier studies of low luminosity AGN, we will be able to relate mass outflow rates to inflow rates and the accretion power providing important constraints on the overall mass-energy budget of the SMBH growth phase.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2013A-0331

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