Ultraluminous Infrared Galaxies

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, ul...

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Veröffentlicht in:Symposium - International Astronomical Union 1999, Vol.186, p.289-294
Hauptverfasser: Sanders, D.B., Surace, J.A., Ishida, C.M.
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Surace, J.A.
Ishida, C.M.
description 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
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