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2000AJ....120...47C - Astron. J., 120, 47-67 (2000/July-0)
The relation between activity and environment in compact groups of galaxies.
COZIOL R., IOVINO A. and DE CARVALHO R.R.
Abstract (from CDS):
The SCGs contain more star-forming galaxies and less non-emission-line galaxies than HCGs. This difference is possibly related to the different selection criteria of SCGs with respect to HCGs. Being selected in an automated way, the SCGs probe a wider range of physical properties than the HCGs, which are biased toward more easily detectable, denser and therefore more evolved groups.
The star-forming galaxies in SCGs are composed of few starburst galaxies and a higher number of H II nucleus galaxies, which generally have less intense star formation than starburst galaxies. As a consequence, the star formation activity in SCGs is remarkably low. At the same time, we found clear evidence for nuclear activity in all the star-forming galaxies. Adding up the percentage of AGNs and star-forming galaxies showing evidence of nuclear activity would result in more than 70% of the galaxies in SCGs having an active nucleus. If these results are further confirmed, CGs will be in the local universe the best location where to find AGNs. Curiously, however, this characteristic of CGs generally excludes Seyfert 1 galaxies.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Compact - Galaxies: Interactions - Galaxies: Seyfert - Galaxies: Starburst
Nomenclature: Table 1: [CID2000] HHMM+DDMM N=49. Table 1: [CID2000] HHMM+DDMM A, [CID2000] HHMM+DDMM Ac, N=193.
Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.
Simbad objects: 51
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