Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-02-06
Astron.Astrophys. 401 (2003) 463-470
Astronomy and Astrophysics
Astrophysics
accepted A&A, 7 pages, 6 figures are in separate files
Scientific paper
10.1051/0004-6361:20030129
The results of the redshift measurements and of the detailed surface photometry in BVR of the compact group ShCG 376 are presented. The radial velocity dispersion, the virial mass, the total luminosity, the M/L ratio, and the crossing time of the group are estimated. The group consists of eight accordant redshift spiral galaxies. Four (or possibly five) of the group members have emission-line spectra. Such morphological content and the number of emission-line galaxies are very atypical for compact galaxy groups. There are signs of interaction between some members of the group. It is suggested that the irregular shape of the brightest galaxy No. 4 is probably due to interaction with other members of the group, particularly, the emission line galaxy No. 6 with a discordant redshift (Delta v = 2600 km/s). It is speculated that the latter galaxy may be a infalling intruder to the group.
Chavushyan Vahram H.
Tiersch Heinz
Tovmassian Gaghik. H.
Tovmassian Hrant M.
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