Stability of spiral-wave packets in a gaseous disk

Details Stability of spiral-wave packets in a gaseous disk Stability of spiral-wave packets in a gaseous disk

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985azh....62..871a&link_type=abstract

(Astronomicheskii Zhurnal, vol. 62, Sept.-Oct. 1985, p. 871-874) Soviet Astronomy (ISSN 0038-5301), vol. 29, Sept.-Oct. 1985, p.

Astronomy and Astrophysics

Astronomy

Density Wave Model, Galactic Structure, Spiral Galaxies, Galactic Rotation, Propagation Modes, Wave Packets

Scientific paper

The interaction of the main mode of a spiral-wave packet with its close
neighbours in a self-gravitating gaseous disk is considered. Criteria of
instability are obtained. The characteristic timescale of instability
for the Galaxy is of the order of the time of the Galaxy's rotation
around its axis.

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