Self-suppression of Jeans instability in a rotating gravitating disk

Details Self-suppression of Jeans instability in a rotating gravitating disk Self-suppression of Jeans instability in a rotating gravitating disk

Jun 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pazh....4..210m&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 4, May 1978, p. 210-213.) Soviet Astronomy Letters, vol. 4, May-June 1978, p. 115, 116.

Astronomy and Astrophysics

Astronomy

1

Astronomical Models, Galactic Evolution, Galactic Structure, Jeans Theory, Rotating Disks, Star Distribution, Angular Velocity, Fourier Series, Gas Dynamics, Harmonics, Heat Transfer, Kinetic Energy, Mathematical Models, Potential Energy, Relaxation Time, Spiral Galaxies, Wentzel-Kramer-Brillouin Method

Scientific paper

A very simple mathematical description of the heating process for a gravitationally unstable disk of stars is presented. Equations are derived which completely describe the heating process that results from the buildup of gravitational instability in a gravitating disk of stars. It is shown that the heating process serves to suppress the instability and that the relaxation time for a specific analytical example amounts to about 1.5 revolutions of the disk.

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