Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...281..685c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 281, no. 3, p. 685-690
Astronomy and Astrophysics
Astrophysics
12
Celestial Mechanics, Dark Matter, Galactic Clusters, Galactic Structure, Interacting Galaxies, Morphology, Three Body Problem, Astronomical Models, Computerized Simulation, Elliptical Galaxies
Scientific paper
Methods for statistical studies of geometrical configurations of triplets of galaxies are discussed and applied to observations. Those of the observed triplets, which are believed to be bound isolated systems, are scattered uniformly over the area of all possible configurations and do not reveal any excess of hierarchical structures. Morphology of the galaxies in the triplets do not show any predominance of elliptical galaxies which could be merger remnants. The distribution of the geometrical structures cannot be explained by three-body dynamics, while the morphology suggests that the observed galaxies are not likely to be results of galaxy mergers. The presence of smoothly distributed dark matter in these systems may explain the observations.
Chernin Arthur D.
Ivanov Alexei V.
Mikkola Seppo
Trofimof A. V.
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