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A K-Band Search for Induced Bars in Interacting Systems

Published online by Cambridge University Press:  12 April 2016

William C. Keel ,
Gene G. Byrd  and
Mario Klarić
William C. Keel
Affiliation:
Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, Al 35487
Gene G. Byrd
Affiliation:
Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, Al 35487
Mario Klarić
Affiliation:
Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, Al 35487

Extract

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Both active and starburst galactic nuclei are best understood if they are fuelled by gas inflow to the nucleus (e.g. Simkin, Su & Schwarz 1980; Hutchings & Campbell 1983).

There is observational evidence that the occurrence of Seyfert and QSO activity is enhanced in the presence of nearby companions (Dahari 1984; Keel et al 1985; Hummel et al. 1987). At least some samples of Seyfert host galaxies show more close companions than would be expected for a random sample of similar galaxies, though the situation for tidal disturbances themselves is more complex. The selection effects modelled by Byrd et al. (1987) suggest that virtually all the Seyfert galaxies in Dahari’s sample have a companion which is (in principle) physically sufficient to provoke gas inflow in the disk.

Type
Posters of Part V and Part VI
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 360 - 362
Copyright
Copyright © Astronomical Society of the Pacific 1996

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