Dynamical instability of a model of M87

Details Dynamical instability of a model of M87 Dynamical instability of a model of M87

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...319...55m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 319, Aug. 1, 1987, p. 55-60.

Astronomy and Astrophysics

Astrophysics

28

Astronomical Models, Dynamic Models, Dynamic Stability, Elliptical Galaxies, Many Body Problem, Galactic Structure, Isophotes, Velocity Distribution

Scientific paper

The stability of Newton and Binney's dynamical model of the giant
elliptical galaxy M87 is tested with a mean-field N-body code. The model
is unstable to the formation of a bar near the center. This result
suggests that stable models of M87 with strong velocity anisotropies may
have to be nonspherical.

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