Short-wave Jeans instability in a multicomponent galactic disk

Details Short-wave Jeans instability in a multicomponent galactic disk Short-wave Jeans instability in a multicomponent galactic disk

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7....9m&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Jan. 1981, p. 9-13.) Soviet Astronomy Letters, vol. 7, Jan.-Feb. 1981, p. 5-7. Tran

Astronomy and Astrophysics

Astronomy

Disk Galaxies, Early Stars, Gas Composition, Radial Velocity, Stellar Evolution, Stellar Motions, Perturbation Theory, Poisson Equation, Short Wave Radiation, Spiral Galaxies, Stellar Structure

Scientific paper

The appearance of Jeans instability in a multicomponent disk of stars and gas whose low-mass components (the gas and young stars) have a small velocity dispersion is considered. It is shown that under such conditions the Jeans instability can set in at wavelengths comparable with or even shorter than the wavelength of the spiral pattern. This instability could be excited by the star formation process.

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