A quantitative determination of the AGN content in local ULIRGs throughL-band spectroscopy

Authors :: Guido Risaliti
E. Sani
Masatoshi Imanishi
Source :: Monthly Notices of the Royal Astronomical Society. 401:197-203
Publication Year :: 2010
Publisher :: Oxford University Press (OUP), 2010.
Abstract: We present a quantitative estimate of the relative AGN/starburst content in a sample of 59 nearby (z85% of the observed infrared luminosity. The subsample of sources optically classified as LINERs (31 objects) shows a similar AGN/starburst distribution as the whole sample, indicating a composite nature for this class of objects. We also show that a few ULIRGs, optically classified as starbursts, have L-band spectral features suggesting the presence of a buried AGN.<br />8 Pages, 5 figures. Accepted for publication in MNRAS

Subjects :: Physics
L band
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Infrared
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Quantitative determination
Luminosity
Space and Planetary Science
Content (measure theory)
Spectroscopy
Astrophysics::Galaxy Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics

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