Abstract
This paper deals with the observed variation in the flattening of galaxies with the density of galaxies in the subclusters of Coma surrounding NGC 4889, NGC 4874, and NGC 4839 based on data from the Abastumani Combined Catalog of Galaxies. The mean values of the observed ratios of the diameters of the galaxies, as well as histograms of their distributions, indicate that in the central, dense regions of the subclusters within a volume of 0.5h −175 Mpc3, E and S0 type galaxies are close to spheroidal. A significant reduction in the mean values of the diameters of the galaxies in the subclusters is noted, regardless of their morphology relative to the galaxies in the halo of the Coma cluster. In the subclusters, spiral galaxies are found with a hydrogen deficit that is more than 5 times the hydrogen deficit in spirals within the halo of the cluster. According to their 3-D coordinates, most of the galaxies with a hydrogen deficit are located closer to the south-east edge of the subcluster surrounding NGC 4874 near an extended gas filament in the x-ray region. This may indicate that the subcluster is moving toward a central condensation of faint galaxies in the Coma cluster and a possible merger with it.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. Dressler, Astrophys. J. 236, 351 (1980).
D. O. Richstone, Astrophys. J. 200, 535 (1975).
D. O. Richstone, Astrophys. J. 204, 642 (1976).
K. M. Strom and S. E. Strom, Astron. J. 83, 73 (1978).
K. M. Strom and S. E. Strom, Astron. J. 83, 1293 (1978).
K. M. Strom and S. E. Strom, Astrophys. J. 225, L93 (1978).
R. Farouki and S. L. Shapiro, Astrophys. J. 234, 32 (1981).
J. A. F. de Freitas Pacheco, R. E. de Souza, and L. Arakaki, A. J. 88, 1435 (1983).
P. Nilson, Uppsala General Catalogue of Galaxies, Uppsala (1973).
H. Quintana, R. E. de Souza, and L. Arakaki, ESO pr. No. 407 (1985).
A. Dressler, Astrophys. J. Suppl. Ser. 42, 565 (1980).
N. G. Kogoshvili, T. M. Borchkhadze, and A. T. Kalloghlian, Astrofizika 48, 515 (2005).
N. G. Kogoshvili and T. M. Borchkhadze, Abastum. astrofiz. observ. Byull. 77 (2004).
G. de Vaucouleurs, A. de Vaucouleurs, H. G. Corwin et al., The Third Reference Catalogue of Bright Galaxies, Springer-Verlag (1991).
L. A. Thompson, Astrophys. J. 209, 22 (1976).
A. Dekel, M. Lecar, and J. Shaham, Astrophys. J. 241, 946 (1980).
R. E. De Souza, G. Vettolani, and G. Chincarini, Astron. Astrophys. 143, 143 (1985).
A. Dressler, Astrophys. J. 301, 35 (1986).
R. Giovanelli and M. P. Hayes, Astrophys. J. 292, 404 (1985).
G. Gavazzi, K. O’Neil, A. Boselli, and W. van Driel, Astron. Astrophys. 449, 929 (2006).
D. Merritt, Astrophys. J. 313, 121 (1987).
H. Bravo-Alfaro, V. Cayatte, C. Balkowski, and J. H. van Gorkom, A New Vision of an Old Cluster: Untangling Cona Berenices, 73 (1997), Marseilles, France.
T. Venturi, G. Giovannini, and L. Feretti, Astron. J. 99, 1381 (1990).
A. Vikhlinin, W. Forman, and C. Jones, Astrophys. J. 474, L7 (1997).
R. H. Donnelly, M. Markevitch, W. Forman, E. Churazov, and M. Gilfanov, Astrophys. J. 513, 690 (1999).
M. R. Merrifield and S. M. Kent, Astron. J. 98, 351 (1989).
F. W. Baier, K. Fritze, and H. Tiersch, Astron. Nachr. 31, 89 (1990).
J. G. Godwin, N. Metcalfe, and J. V. Peach, Mon. Notic. Roy. Astron. Soc. 202, 113 (1983).
A. Biviano, F. Durret, D. Gerbal et al., Astron. Astrophys. 311, 95 (1996).
Author information
Authors and Affiliations
Additional information
__________
Translated from Astrofizika, Vol. 50, No. 3, pp. 355–368 (August 2007).
Rights and permissions
About this article
Cite this article
Kogoshvili, N.G., Borchkhadze, T.M. & Kalloghlian, A.T. Flattening of galaxies of different morphological types in subclusters of Coma. Astrophysics 50, 289–300 (2007). https://doi.org/10.1007/s10511-007-0028-4
Received:
Issue Date:
DOI: https://doi.org/10.1007/s10511-007-0028-4