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Paper: Dynamics and Merging in Compact Galaxy Groups
Volume: 209, Small Galaxy Groups, IAU Colloquium 174
Page: 299
Authors: Zheng, J.-Q.; Valtonen, M. J.; Chernin, A. D.; Wiren, S.
Abstract: By using a few body code with a frictional force we study the dynamics of small galaxy groups. The results have been compared with observational data on triples and binaries by Karachentsev et al. We start with four to five galaxy groups initially and take samples of the groups when the membership has dropped to two or three. It is possible to find merger evolution models which agree with observations. One interesting factor is the mass-to-light ratio of the observed systems: we find the best fit with the models when the mass-to-light ratio is about 50 in solar units.
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