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