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Low-Ionization Balqsos: Warm Ultraluminous Galaxies at High Redshifts

Published online by Cambridge University Press:  25 May 2016

E. Egami
E. Egami*
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Postfach 1603, D-85740 Garching, Germany

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A decade ago Sanders et al. (1988a, b) proposed a possible QSO formation scenario as a sequence of Galaxy Mergers → Ultraluminous IR Galaxies (ULIRGs) → Warm ULIRGs → QSOs. Since then, this proposal has become a paradigm against which all the subsequent observations will be compared. Fortunately for us, this paradigm makes two specific predictions: that is, 1) ULIRGs are powered by hidden AGNs, and 2) ULIRGs should be more abundant at z ~ 2, where the comoving density of optically-selected QSOs is sharply peaking up.

Type
Deep Fields & Evolution
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 475 - 478
Copyright
Copyright © Kluwer 1999 

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