Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-06-10
Astrophysics 50:289-300,2007
Astronomy and Astrophysics
Astrophysics
This material is a slightly corrected version of an article published in the "Astrophysics", Vol. 50, No. 3, 2007,
Scientific paper
10.1007/s10511-007-0028-4
The dependence of flattening of galaxies on the density of galaxies in subclusters selected around galaxies NGC4889, NGC4874 and NGC4839 in the Coma cluster has been studied. The mean values of observed ratios of galaxy diameters and histograms of their distributions indicate that in the central, dense regions of subclusters E and S0 type galaxies are close to spheroidals. Spiral galaxies in subcllusters are found with a hydrogen deficit that about 5 times exceeds the hydrogen deficit in spirals within the halo of the Coma cluster. Most of spirals with a hydrogen deficit in the subcluster around NGC 4874 according to their 3-D coordinates are located closer to the south-east edge of this subcluster near an extended gas filament in the x-ray region. This may indicate over the move of this subcluster toward the central condensation of faint galaxies in the Coma cluster for a possible merge with it.
Borchkhadze Tengiz M.
Kalloghlian Arsen T.
Kogoshvili N. G.
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