ARE ULTRA-LUMINOUS INFRARED GALAXIES THE DOMINANT EXTRAGALACTIC POPULATION AT HIGH LUMINOSITIES

Authors
KRISHNA G BIERMANN PL
Citation
G. Krishna et Pl. Biermann, ARE ULTRA-LUMINOUS INFRARED GALAXIES THE DOMINANT EXTRAGALACTIC POPULATION AT HIGH LUMINOSITIES, Astronomy and astrophysics, 330(2), 1998, pp. 37-40
Citations number
35
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
330
Issue
2
Year of publication
1998
Pages
37 - 40
Database
ISI
SICI code
0004-6361(1998)330:2<37:AUIGTD>2.0.ZU;2-D
Abstract
Based on the recent QSO surveys it is shown that, contrary to the wide spread notion, high-luminousity QSOs are at least as numerous in the n earby universe as the ultraluminous far-infrared galaxies (ULIGs). The refore, the fraction of ULIGs that have got a hidden quasar at the nuc leus, for example in the dust shrouded phase, cannot be overwhelmingly large.