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Ultraluminous Infrared Galaxies

Sanders, D. B. and Surace, J. A. and Ishida, C. M. (1999) Ultraluminous Infrared Galaxies. In: Galaxy Interactions at Low and High Redshift. International Astronomical Union Symposium (IAUS). No.186. Springer , Dordrecht, pp. 289-294. ISBN 978-0-7923-5833-6.

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At luminosities above ∼ 10^(11) L⨀, infrared galaxies become the dominant population of extragalactic objects in the local Universe (z < 0.5), being more numerous than optically selected starburst and Seyfert galaxies, and QSOs at comparable bolometric luminosity. At the highest luminosities, ultraluminous infrared galaxies (ULIGs: L_(ir) > 10^(12) L⨀), outnumber optically selected QSOs by a factor of ∼ 1.5–2. All of the nearest ULIGs (z<0.1) appear to be advanced mergers that are powered by both a circumnuclear starburst and AGN, both of which are fueled by an enormous concentration of molecular gas (∼ 10^(10) M⨀) that has been funneled into the merger nucleus. ULIGs may represent a primary stage in the formation of massive black holes and elliptical galaxy cores. The intense circumnuclear starburst that accompanies the ULIG phase may also represent a primary stage in the formation of globular clusters, and the metal enrichment of the intergalactic medium by gas and dust expelled from the nucleus due to the combined forces of supernova explosions and powerful stellar winds.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Sanders, D. B.0000-0002-1233-9998
Surace, J. A.0000-0001-7291-0087
Additional Information:© 1999 Springer Science+Business Media Dordrecht.
Subject Keywords:Globular Cluster; Seyfert Galaxy; Intergalactic Medium; Bolometric Luminosity; Extragalactic Object
Series Name:International Astronomical Union Symposium (IAUS)
Issue or Number:186
Record Number:CaltechAUTHORS:20190605-161321435
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96177
Deposited By: Tony Diaz
Deposited On:06 Jun 2019 03:04
Last Modified:16 Nov 2021 17:18

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