Mathematics – Logic
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008rmxaa..44..125t&link_type=abstract
Revista Mexicana de Astronomía y Astrofísica Vol. 44, pp. 125-136 (2008) (http://www.astroscu.unam.mx/~rmaa/)
Mathematics
Logic
3
Galaxies: Clusters: Individual (Shcg 285, Shcg 289, Shcg 322, Shcg 323, Shcg 327, Shcg 330, Shcg46), Galaxies: Photometry, Galaxies: Distances And Redshifts, Galaxies: Interactions
Scientific paper
The results of the detailed spectroscopic and photometric study of seven Shakhbazian compact groups: ShCG 285, ShCG 289, ShCG 322, ShCG 323, ShCG 327, ShCG 330, and ShCG 346, are presented. We determined redshifts of member galaxies and radial velocity dispersions of groups. We studied also the distribution of the surface brightness of member galaxies in R and determined their morphological types. We found that, as in previously studied ShCGs, some group members are interacting or are even in the process of merging. We determined physical parameters of groups: virial masses, luminosities, mass-to-luminosity ratios, and the crossing times. On the basis of the results obtained in this and our previous works, the general properties of 37 ShCGs are discussed. It is shown that about 75% of member galaxies are of E and S0 type.
Tiersch Heinz
Tovmassian Hrant M.
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