Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.247..674v&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 247, Dec. 15, 1990, p. 674-683.
Astronomy and Astrophysics
Astronomy
12
Astronomical Models, Elliptical Galaxies, Galactic Evolution, Galactic Nuclei, Interstellar Gas, Cosmology, Gravitational Fields, Mass Distribution, Schwarzschild Metric
Scientific paper
The character of the dynamical state of the gas in some elliptical galaxies is presently approached in view of the global evolution of gas in ellipsoidal potentials from a variety of initial configurations. A test-particle scheme was used to simulate the long-term evolution of a gas cloud ensemble, and the Schwarzschild ellipsoid was used to duplicate an elliptical galaxy's smoothed gravitational field. It is found that gas dynamics, under circumstances of an initially thin annulus distribution which is misaligned with the preferred planes of a generally triaxial stationary potential, is governed by a complex interplay among vertical bending modes, radial diffusion, differential precession, and settling to one of the preferred planes.
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