QSO evolution in the interaction model

Details QSO evolution in the interaction model QSO evolution in the interaction model

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90..998d&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, June 1985, p. 998-1003. Research supported by the Natural Sciences and Engineeri

Astronomy and Astrophysics

Astronomy

36

Astronomical Models, Black Holes (Astronomy), Galactic Clusters, Galactic Evolution, Galactic Nuclei, Quasars, Accretion Disks, Gas Transport, Luminosity, Red Shift, Space Density

Scientific paper

Stockton's (1982) interaction hypothesis is the basis of the following investigation of QSO evolution. Activity is held to be due to an interaction between two galaxies, which results in the transfer of gas onto a supermassive black hole (SBH) at the center of at least one participant. Attention is given to explicit models for interactions in cluster environments which show that a peak QSO population can be formed in this manner at z values of 2-3, with little activity prior to this epoch. It is suggested that the mean SBH mass increases with lookback time, leading to a statistical brightening with redshift. Both forms of evolution must contribute to the overall QSO luminosity function.

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