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Aromatic Features in AGNs: Star-forming Infrared Luminosity Function of AGN Host Galaxies

Shi, Yong and Ogle, Patrick and Rieke, George H. and Antonucci, Robert and Hines, Dean C. and Smith, Paul S. and Low, Frank J. and Bouwman, Jeroen and Willmer, Christopher (2007) Aromatic Features in AGNs: Star-forming Infrared Luminosity Function of AGN Host Galaxies. Astrophysical Journal, 669 (2). pp. 841-861. ISSN 0004-637X. doi:10.1086/521594. https://resolver.caltech.edu/CaltechAUTHORS:20100211-153233106

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Abstract

We describe observations of aromatic features at 7.7 and 11.3 μm in AGNs of three types, including PG, 2MASS, and 3CR objects. The feature has been demonstrated to originate predominantly from star formation. Based on the aromatic-derived star-forming luminosity, we find that the far-IR emission of AGNs can be dominated by either star formation or nuclear emission; the average contribution from star formation is around 25% at 70 and 160 μm. The star-forming infrared luminosity functions of the three types of AGNs are flatter than those of field galaxies, implying that nuclear activity and star formation tend to be enhanced together. The star-forming luminosity function is also a function of the strength of nuclear activity from normal galaxies to the bright quasars, with luminosity functions becoming flatter for more intense nuclear activity. Different types of AGNs show different distributions in the level of star formation activity, with 2MASS > PG > 3CR star formation rates.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/521594DOIArticle
http://www.iop.org/EJ/abstract/0004-637X/669/2/841PublisherArticle
ORCID:
AuthorORCID
Shi, Yong0000-0002-8614-6275
Ogle, Patrick0000-0002-3471-981X
Rieke, George H.0000-0003-2303-6519
Hines, Dean C.0000-0003-4653-6161
Additional Information:© 2007 American Astronomical Society. Print publication: Issue 2 (2007 November 10); received 2007 April 19; accepted for publication 2007 July 11. We thank J. D. Smith for helpful suggestions and the anonymous referee for detailed comments. Support for this work is provided by NASA through contracts 1255094 and 1256424 issued by JPL/California Institute of Technology. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation.
Group:Infrared Processing and Analysis Center (IPAC)
Funders:
Funding AgencyGrant Number
NASA/JPL/Caltech1255094
NASA/JPL/Caltech1256424
Subject Keywords:galaxies: active; galaxies: starburst; infrared: galaxies
Issue or Number:2
DOI:10.1086/521594
Record Number:CaltechAUTHORS:20100211-153233106
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100211-153233106
Official Citation:Aromatic Features in AGNs: Star-forming Infrared Luminosity Function of AGN Host Galaxies Yong Shi, Patrick Ogle, George H. Rieke, Robert Antonucci, Dean C. Hines, Paul S. Smith, Frank J. Low, Jeroen Bouwman, and Christopher Willmer 2007 ApJ 669 841-861 doi: 10.1086/521594
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17462
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:12 Feb 2010 18:07
Last Modified:08 Nov 2021 23:35

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