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Three dimensional analysis of groups of galaxies

Published online by Cambridge University Press:  14 August 2015

Jürgen Materne*
Affiliation:
European Southern Observatory, c/o CERN, CH-1211 Geneva 23

Extract

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A systematic and automatic classification of groups of galaxies has been made only in two dimensions up to now (Turner and Gott, 1976). They investigated the projected density of galaxies at the sky. in this analysis one can correct for foreground and background galaxies and superimposed groups only statistically. the properties of the groups and their member galaxies will often not be recognized correctly. Therefore, a three dimensional analysis is proposed.

Type
I. Galaxies in Small Groups
Copyright
Copyright © Reidel 1978 

References

Literature:

Bock, H.H. 1974, Automatische Klassifikation, Vandenhoeck and Ruprecht, Göttingen.Google Scholar
Turner, E.L. and Gott, J.R. 1976, Astrophys. J. Suppl. 32, 409.CrossRefGoogle Scholar
de Vaucouleurs, G. 1976 in Galaxies and the Universe, ed. A. and Sandage, M., Kristian, J., University of Chicago Press, Chicago and London, p. 557.Google Scholar