A CCD Study of the Environment of Seyfert Galaxies. II. Testing the Interaction Hypothesis
The Astrophysical Journal1998Vol. 496(1), pp. 93–102
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Abstract
An analysis of the environment of a sample of 33 CfA Seyfert galaxies and a control sample of 45 nonactive galaxies matched in luminosity, redshift, and morphology to the Seyfert galaxies as reported in Paper I is presented. The covariance function amplitudes of the Seyfert and control samples are not statistically significantly different from one another and from the general field. Moreover, the companion frequency of the Seyfert galaxies, the probability of finding a companion galaxy brighter than -17.5 in R within 50 kpc (0.30 ± 0.11), is not statistically significantly different from that for the nonactive control sample (0.23 ± 0.09).
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