The propagation of density waves in a galaxy

Details The propagation of density waves in a galaxy The propagation of density waves in a galaxy

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ap%26ss..81..345t&link_type=abstract

Astrophysics and Space Science, vol. 81, no. 1-2, Jan. 1982, p. 345-355.

Astronomy and Astrophysics

Astrophysics

Density Wave Model, Spiral Galaxies, Wave Dispersion, Wave Propagation, Angular Velocity, Bessel Functions, Pitch (Inclination), Systems Stability

Scientific paper

The behavior of the solutions of the Lin-Shu dispersion relation (1964, 1966) is examined qualitatively in terms of the stability parameter Q. Results show that a modification of the critical values of the dispersion speeds does not drastically effect the behavior of the solutions. On the other hand, the solutions of the Lynden Bell-Kalnojs dispersion relation (1972) have a more complicated behavior. This dispersion relation has different critical values for the dispersion speeds, and these values are generally larger than the corresponding values of the Lin-Shu relation.

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