NOAO >   Observing Info >   Approved Programs >   2014A-0282

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Proposal Information for 2014A-0282


PI: Davide Lena, Rochester Institute of Technology (CIS), dxl1840@g.rit.edu
Address: Center for Imaging Science, 54 Lomb Memorial Drive, Rochester, NY 14623-5604, USA

CoI: Andrew Robinson, Rochester Institute of Technology (CIS)
CoI: Thaisa Storchi-Bergmann, Universidade Federal do Rio Grande do Sul (UFRGS)
CoI: Allan Schnor-Muller, Universidade Federal do Rio Grande do Sul (UFRGS)
CoI: Rogemar Riffel, Universidade Federal Santa Maria (UFSM)
CoI: Carine Brum, Universidade Federal Santa Maria (UFSM)
CoI: Guilherme Couto, Universidade Federal do Rio Grande do Sul (UFRGS)

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 inner kiloparsec of the nearby active galaxies NGC3227, NGC4180, NGC4388 and NGC5506. With a companion Gemini South proposal (5 targets), these observations will complete a program of optical integral field 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 constraint the physical parameters of the inflows and outflows such as the geometry, gas density and mass flow rate. With this information for the complete sample of 20 objects, 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 >   2014A-0282

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