3CR249.1 and Ton202-luminous QSOs in interacting systems

The morphologies of the extended emission-line regions around the QSOs 3CR249.1 and Ton202 indicate that they have, in both cases, resulted from interactions between two galaxies of roughly equal mass and that the galaxies involved possessed extensive rotating gaseous disks before their encounters....

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Bibliographic Details
Published in:Nature (London) 1983-10, Vol.305 (5936), p.678-682
Main Authors: Stockton, Alan, MacKenty, John W
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Humanities and Social Sciences
multidisciplinary
Quasars
Quasars. Active or peculiar galaxies, objects, and systems
Science
Science (multidisciplinary)
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:The morphologies of the extended emission-line regions around the QSOs 3CR249.1 and Ton202 indicate that they have, in both cases, resulted from interactions between two galaxies of roughly equal mass and that the galaxies involved possessed extensive rotating gaseous disks before their encounters. These two examples provide support for the position that luminous QSOs are frequently activated by violent interactions. More generally, the distribution of gas around luminous QSOs promises to be a sensitive and useful indicator of the recent history of their physical environment.
ISSN:0028-0836
1476-4687
DOI:10.1038/305678a0