The global stability of our Galaxy

Details The global stability of our Galaxy The global stability of our Galaxy

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.217..127s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 217, Nov. 1, 1985, p. 127-148.

Statistics

Computation

71

Barred Galaxies, Dynamic Stability, Galactic Evolution, Galactic Structure, Mass Distribution, Milky Way Galaxy, Astronomical Models, Computational Astrophysics, Disk Galaxies, Galactic Bulge, Galactic Rotation, Many Body Problem, Radial Velocity

Scientific paper

An N-body realization of the mass model of our Galaxy proposed by Bahcall, Schmidt & Soneira exhibits two-armed spiral instabilities, but shows no tendency towards bar formation. The central bulge component is primarily responsible for these unusual stability properties. The halo component of the model is shown to be irrelevant to bar stability but is still required in order to prevent one-armed instabilities.

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