The Nature of the Activity in Hickson Compact Groups of Galaxies | Zendy

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

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The Nature of the Activity in Hickson Compact Groups of Galaxies

Author(s) -

R. Coziol,

A. L. B. Ribeiro,

R. R. de Carvalho,

H. V. Capelato

Publication year - 1998

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 - 10.1086/305160

Subject(s) - astrophysics , physics , galaxy group , active galactic nucleus , luminous infrared galaxy , galaxy , peculiar galaxy , compact group , elliptical galaxy , radio galaxy , astronomy , geometry , mathematics , lie group

We present the results of the spectral classification of the 82 brightestgalaxies in a sample of 17 compact groups. We verify that the AGNs arepreferentially located in the most early-type and luminous galaxies of thegroups, as is usually observed in the field. But these AGNs also appear to besystematically concentrated towards the central parts of the groups. Ourobservations suggest a correlation between activity types, morphologies anddensities of galaxies in the compact groups. This is consistent with a scenarioin which galaxies of compact groups evolve by interacting with theirenvironment and are currently in a quiet phase of their activityComment: 22 pages, LaTeX (aasms4.sty) + 7 figures; accepted for publication in the Astrophysical Journa

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