The X-ray properties of luminous infrared galaxies

Details The X-ray properties of luminous infrared galaxies The X-ray properties of luminous infrared galaxies

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..599..898r&link_type=abstract

X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and G

Astronomy and Astrophysics

Astronomy

Starburst Galaxies And Infrared Excess Galaxies, Infrared Emission, X-Ray Sources, X-Ray Bursts, Galactic Nuclei, Circumnuclear Matter, And Bulges, Background Radiations

Scientific paper

We present a study of a sample of luminous infrared galaxies (LIGs, LIR>1011Lsolar) observed in the hard (2-10 keV) X rays. The main results are: 1) an analysis of the correlation between X-ray and infrared emission reveals that most sources are powered both by AGN and starburst activity and that the AGNs in our sample are less absorbed in the infrared than in the X-rays; 2) the study of a subsample of sources observed in the 20-200 keV band indicates that most of the AGNs hosted by the LIGs are heavily obscured up to 100 keV and, therefore, their contribution to the X-ray background must be small. .

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