The Host Galaxies of IRAS-selected Quasi-stellar Objects

Details The Host Galaxies of IRAS-selected Quasi-stellar Objects The Host Galaxies of IRAS-selected Quasi-stellar Objects

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...473..760b&link_type=abstract

Astrophysical Journal v.473, p.760

Astronomy and Astrophysics

Astronomy

54

Galaxies: Active, Galaxies: Interactions, Galaxies: Nuclei, Galaxies: Quasars: General, Galaxies: Starburst, Infrared: Galaxies

Scientific paper

We present Hubble Space Telescope (HST) images of three QSOs selected on the basis of their IRAS properties. The data were taken with the Planetary Camera primarily in order to examine the host galaxies. All three QSOs appear embedded in spectacular interactions between two or more luminous galaxies, probably spirals. We discuss the evolutionary connection, if any, between these three objects and the far more numerous ultraluminous infrared galaxies. We argue that these three objects are probably young and therefore do not fit a scenario in which QSOs emerge only in the later stages of an interaction when most of the dust has been blown away. It may be that we are simply viewing them from a fortuitous angle that allows a clear view into the cores.

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