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

Abstract

view Abstract Citations (8) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Gravitational encounters in the Local Group of galaxies: some numerical experiments. Innanen, K. A. ; Valtonen, M. J. Abstract 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. Publication: The Astrophysical Journal Pub Date: June 1977 DOI: 10.1086/155296 Bibcode: 1977ApJ...214..692I Keywords: 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; Astrophysics full text sources ADS | data products NED (1)