Large-scale stability of collisionless elliptical disks - Embedded models

Details Large-scale stability of collisionless elliptical disks - Embedded models Large-scale stability of collisionless elliptical disks - Embedded models

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..469m&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, May 1991, p. 469-473. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

Astronomical Models, Disk Galaxies, Elliptical Galaxies, Galactic Mass, Gravitational Effects, Corotation, Perturbation Theory, Rotating Fluids, Systems Stability

Scientific paper

The stability of the gravitating elliptical disks embedded in a spherical subsystem relative to large-scale bending perturbations and barlike ones is investigated. It is shown that a sufficiently massive external subsystem can provide the stability of an elliptical disk of a practically elliptical shape with corotating internal flows. The evolution is traced of regions of parameters corresponding to stable models during changes in the ratio of the external subsystem mass to the disk mass.

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