Evolution of galactic density waves at the unstable stage

Details Evolution of galactic density waves at the unstable stage Evolution of galactic density waves at the unstable stage

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977acasn..18..105y&link_type=abstract

Acta Astronomica Sinica, vol. 18, June 1977, p. 105-112. In Chinese.

Astronomy and Astrophysics

Astronomy

Astrodynamics, Boltzmann Transport Equation, Cosmology, Density Wave Model, Galactic Evolution, Stellar Motions, Astronomical Models, Error Analysis, Fluid Mechanics, Galactic Structure, Spiral Galaxies

Scientific paper

The evolution law of galactic density waves is derived on the basis of the Boltzmann equation of stellar dynamics. The results are compared with those obtained from previous work based on the theory of fluid mechanics. It is shown that the results derived from the theory of fluid mechanics represent a reasonably close approximation to the more rigorous solution based on stellar dynamics.

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