New Results on the Coma cluster: Revealing the Primary Component
Durret, F. · Biviano, A. · Gerbal, D. · Fevre, O. Le · Lobo, C. · Mazure, A. · Slezak, E.
Original · EN
Recent observations of the Coma cluster of galaxies in its central region have provided approximately 250 new redshifts - allowing a good membership criterion to be established for brighter galaxies - and magnitudes for 8000 objects in the same region derived from photometric data complete up to V₂₆.₅=22.5. A thorough structural study of the galaxy distribution of the cluster galaxies, jointly with an X-ray wavelet analysis, and with a kinematical analysis of the velocity distribution allows us to uncover a primary body of the cluster, with evidence for a velocity gradient.
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