Companions of Seyfert galaxies - A statistical survey

Details Companions of Seyfert galaxies - A statistical survey Companions of Seyfert galaxies - A statistical survey

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..966d&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, July 1984, p. 966-974.

Mathematics

Probability

212

Celestial Mechanics, Seyfert Galaxies, Gravitational Effects, Histograms, Probability Density Functions, Significance

Scientific paper

A search for close companion galaxies in a redshift-limited sample of Seyfert galaxies is reported. It is found that there is a definite excess of companions in that sample, compared with a control sample of field galaxies. The calculated percentage of Seyferts with physical companions is about 15 percent, while the upper limit on the percentage of the control-sample galaxies with physical companions is only 3.1 percent. Furthermore, about 7.5 percent of the Seyferts have companions that are very close and of comparable size, compared with only about 1 percent of the control sample.

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