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Journal Nonlinear World №1 for 2010 г.
Article in number:
Investigation of structure of the galaxy cluster A1656 in Coma Berenices constellation
Keywords: galaxy cluster two-dimensional wavelet analysis fractal
Authors:
I.K. Rozgacheva, A.A. Borisov
Abstract:
According to the General Relativity the gravitational interaction has the geometric nature. From this hypothesis it follows that the evolution and the scale structure of the observable Universe determine gravitational interaction. Therefore, studying the scale structure of large gravitational systems of galaxies - rich galaxy clusters, one can get the information about the symmetry properties of the gravitational interaction. One of the richest and nearby clusters is the well known cluster A1656 (Abell catalogue) in the Coma Berenices constellation. It studies more than one hundred years, but only in the last thirty years been able to obtain information on thousands of galaxies belong to A1656. During this period of time by different authors several cluster-s substructures are discovered. Another actual problem is the use of new methods for analysis of two-dimensional maps of the distribution of galaxies within clusters. Among these methods should be noted that the wavelet analysis has already proved its efficiency in other areas of science. This paper considers the wavelet analysis of two-dimensional map of galaxies in the cluster A1656. 18 substructures, containing tens of galaxies, are found on the map of cluster using the isotropic wavelet transform. Structures which contain discovered 18 substructures are founded by the anisotropic wavelet transform and form which is similar to concentric rings. Direct evidence of fractal properties of the distribution of galaxies in the cluster A1656 is received. We show that the property of fractality is related to the collective resistance identified 18 groups of galaxies of cluster A1656 on their mutual gravitational tidal destruction.
Pages: 47-56
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