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Conference object . 2016
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Advances in Space Research
Article . 1999 . Peer-reviewed
License: Elsevier TDM
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Advances in Space Research
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Ultraluminous infrared galaxies: Starburst vs. AGN

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Jan 1999 English Publisher:Elsevier BVJournal:Advances in Space Research, volume 23, pages 1,061-1,064 (issn: 0273-1177, Copyright policy )
Authors: Lutz, D; Genzel, R; Sturm, E; Tran, D; Rigopoulou, D; Spoon, H; Moorwood, A;

doi: 10.1016/s0273-1177(99)00248-3

Ultraluminous infrared galaxies: Starburst vs. AGN

Abstract

Abstract We have obtained ISOPHOT-S low resolution mid-infrared spectra of a sample of 60 Ultraluminous Infrared Galaxies (ULIRGs). We use the strength of the ‘PAH’ mid-infrared features as a discriminator between starburst and AGN activity, and to probe for evolutionary effects. Observed ratios of PAH features in ULIRGs differ slightly from those in lower luminosity starbursts. We suggest that such PAH ratio changes relate to the conditions in the interstellar medium in these galaxies, and in particular to extinction.

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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!
1
Average
Average
Average
Green
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