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Starbursts and AGN in Luminous Infrared Galaxies

Armus, L. (2009) Starbursts and AGN in Luminous Infrared Galaxies. In: The starburst-AGN connection. ASP Conference Series. No.408. Astronomical Society of the Pacific , San Francisco, CA, pp. 105-115. ISBN 978-1-58381-696-7.

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Luminous Infrared Galaxies (LIRGs), which emit a significant fraction of their bolometric luminosity in the far-infrared, have L_(IR) ≥ 10^(11)L_ʘ. LIRGs are a mixture of single galaxies, disk galaxy pairs, interacting systems, and advanced mergers which exhibit enhanced star-formation rates and AGN activity compared to normal galaxies. At the highest luminosities (L_(IR) ≥ 10^(12)L_ʘ), Ultraluminous Infrared Galaxies (ULIRGs) may represent an important stage in the formation of QSOs. If the growth of the central black hole preferentially occurs during periods of enhanced star formation, LIRGs and ULIRGs are important laboratories in which to understand both processes. The Great Observatories All-Sky LIRG Survey (GOALS) is aimed at measuring the properties of a large, complete sample of low-redshift LIRGs across the electromagnetic spectrum. With its ability to probe the stars, dust and ionized and molecular gas in LIRGs through mid-infrared imaging and spectroscopy, Spitzer is providing a key component of the GOALS data. In this paper, we summarize the key findings from Spitzer Infrared Spectrograph (IRS) studies of ULIRGs at low and high redshifts, and present early results from GOALS in the context of the co-evolution of starbursts and AGN.

Item Type:Book Section
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Armus, L.0000-0003-3498-2973
Additional Information:© 2009 Astronomical Society of the Pacific. We wish to thank the conference organizers for a stimulating meeting, and an exciting visit to Shanghai.
Group:Infrared Processing and Analysis Center (IPAC)
Series Name:ASP Conference Series
Issue or Number:408
Record Number:CaltechAUTHORS:20100914-100934625
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19939
Deposited By: Tony Diaz
Deposited On:16 Sep 2010 23:06
Last Modified:24 Feb 2020 10:30

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