HCG 16: A High Concentration of Active Galaxies in the Nearby Universe | Zendy

A. L. B. Ribeiro | Zendy; R. R. de Carvalho | Zendy; R. Coziol | Zendy; H. V. Capelato | Zendy; Stephen E. Zepf | Zendy

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HCG 16: A High Concentration of Active Galaxies in the Nearby Universe

Author(s) -

A. L. B. Ribeiro,

R. R. de Carvalho,

R. Coziol,

H. V. Capelato,

Stephen E. Zepf

Publication year - 1996

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310047

Subject(s) - physics , astrophysics , galaxy , active galactic nucleus , universe , radius , velocity dispersion , astronomy , luminous infrared galaxy , galaxy group , galaxy formation and evolution , elliptical galaxy , computer security , computer science

In the course of an extensive campaign to measure radial velocities ofgalaxies in a selected sample of compact groups photometrically studied by deCarvalho et al. (1994), we report the discovery of a system very rich instarburst galaxies and AGNs. This is the system HCG 16 of Hickson's (1982)catalog of CGs. The 7 brightest galaxies form a kinematical group. From theirspectral characteristics, we have identified one Seyfert 2 galaxy, two LINERsand three starburst galaxies. Thus, HCG 16 appears to be a dense concentrationof active galaxies. In our sample of 17 Hickson groups, HCG 16 is unique inthis regard, suggesting that it is an uncommon structure in the nearbyuniverse.Comment: 13 pages, 3 Postscript figures, uses aasms4.st

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