Seyfert galaxies in UZC-Compact Groups

B. Kelm; P. Focardi; V. Zitelli

doi:10.1051/0004-6361:20034289

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arXiv · astro-ph/0402029

Seyfert galaxies in UZC-Compact Groups

B. Kelm·P. Focardi·V. Zitelli

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Abstract

We present results concerning the occurrence of Seyfert galaxies in a new automatically selected sample of nearby Compact Groups of galaxies (UZC-CGs). Seventeen Seyferts are found, constituting ~3% of the UZC-CG galaxy population. CGs hosting and non-hosting a Seyfert member exhibit no significant differences, except that a relevant number of Sy2 is found in unusual CGs, all presenting large velocity dispersion (sigma > 400 km/s), many neighbours and a high number of ellipticals. We also find that the fraction of Seyferts in CGs is 3 times as large as that among UZC-single-galaxies, and results from an excess of Sy2s. CG-Seyferts are not more likely than other CG galaxies to present major interaction patterns, nor to display a bar. Our results indirectly support the minor-merging fueling mechanism.

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BibTeX RIS

B. Kelm, P. Focardi, V. Zitelli. 2004-02-02. Seyfert galaxies in UZC-Compact Groups. https://doi.org/10.1051/0004-6361%3A20034289

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