Gravitational encounters in the Local Group of galaxies - Some numerical experiments

Details Gravitational encounters in the Local Group of galaxies - Some numerical experiments Gravitational encounters in the Local Group of galaxies - Some numerical experiments

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...214..692i&link_type=abstract

Astrophysical Journal, Part 1, vol. 214, June 15, 1977, p. 692-698. Research supported by the National Research Council of Cana

Astronomy and Astrophysics

Astronomy

6

Astronomical Models, Galactic Clusters, Galactic Structure, Local Group (Astronomy), Magellanic Clouds, Milky Way Galaxy, Stellar Gravitation, Andromeda Galaxy, Globular Clusters, Many Body Problem, Numerical Integration, Orbital Elements, Polynomials, Statistical Analysis, Stellar Motions

Scientific paper

The application of n-body computational techniques to test particles and selected galaxies modeled on the Local Group is described. The possible history and eventual fate of objects vulnerable to encounters are investigated in a purely statistical way using two parallel scenarios for the masses of the Galaxy and M31. Initial conditions and the numerical method employed are outlined, and various n-body encounters among members of the Local Group are analyzed. Results are presented for the possible ultimate fates of the Large Magellanic Cloud, both Magellanic Clouds as a pair, the Small Magellanic Cloud alone, M33, M32, the Fornax dwarf spheroidal galaxy, NGC 147 and 185, outlying globular clusters in different galaxies, a star escaping from the solar neighborhood in the Galaxy, and a star escaping from M31.

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