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Proceedings of the International Astronomical Union
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Preprint . 2012
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Proceedings of the International Astronomical Union
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A Spitzer study of interacting luminous and ultra-luminous infrared galaxies

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Sep 2011Embargo end date: 01 Jan 2012 English Publisher:Cambridge University Press (CUP)Journal:Proceedings of the International Astronomical Union, volume 7, pages 202-204 (issn: 1743-9213, eissn: 1743-9221, Copyright policy )
Authors: Claus Leitherer; João R.S. Leão;

doi: 10.1017/s1743921312009738 , 10.48550/arxiv.1203.1679

arXiv: http://arxiv.org/abs/1203.1679

A Spitzer study of interacting luminous and ultra-luminous infrared galaxies

Abstract

AbstractWe conducted a Spitzer Space Telescope survey of 28 Luminous (11 < log (LIR/L⊙) < 12, LIRGs) and Ultra-Luminous Infrared Galaxies (log (LIR/L⊙) > 12, ULIRGs). Many of these galaxies are found in pairs or associations and are powered by either nuclear activity or star-formation (Sanders & Mirabel 1996). Our main goal is to understand the relative importance of starbursts and AGNs in interacting systems. Is the frequency of AGN and starbursts in these interacting galaxies related to their luminosities? What is the importance of the merger stage and the frequency of AGNs? We present our conclusions and diagnostic diagrams based in the observed near infrared lines and compare to studies based solely in optical data.

Related Organizations
Keywords

Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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