Energy sources of ultraluminous infrared galaxies

Details Energy sources of ultraluminous infrared galaxies Energy sources of ultraluminous infrared galaxies

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005asthe..98..399i&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 98, No. 6, p. 399 - 408 (2005)

Astronomy and Astrophysics

Astronomy

1

Ultraluminous Infrared Galaxies, Energy Sources

Scientific paper

Ultraluminous infrared galaxies (ULIRGs), discovered with the IRAS all sky survey, radiate quasar-like luminosities (L > 1012Lsolar) as infrared dust emission, and thus possess extremely powerful energy sources hidden behind dust. However, the most important issue, namely, whether the dominant energy sources of ULIRGs are dust-obscured AGNs or starbursts, is still unclear. In this article, I review the current understanding of the energy sources of nearby ULIRGs, based on our thermal infrared spectroscopy using Subaru and Spitzer, as well as millimeter and X-ray observations.

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