期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 678, 期 1, 页码 L9-L12出版社
IOP PUBLISHING LTD
DOI: 10.1086/588498
关键词
galaxies : active; galaxies : evolution; galaxies : nuclei; galaxies : Seyfert
Based on a new survey of AGN activity in compact groups of galaxies, we report a remarkable deficiency of broad-line AGNs as compared to narrow-line AGNs. The cause of such deficiency could be related to the average low luminosity of AGNs in CGs: 10(39)ergs s(-1). This result may imply lower accretion rates in CG AGNs, making broad-line regions (BLRs) undetectable, or may indicate a genuine absence of BLRs. Both phenomena are consistent with gas stripping through tidal interaction and dry mergers.
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