On the formation of large-scale shock waves in barred galaxies

Details On the formation of large-scale shock waves in barred galaxies On the formation of large-scale shock waves in barred galaxies

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..43..491s&link_type=abstract

Astrophysics and Space Science, vol. 43, Sept. 1976, p. 491-503.

Astronomy and Astrophysics

Astrophysics

97

Density Wave Model, Galactic Evolution, Galactic Structure, Shock Wave Propagation, Spiral Galaxies, Astronomical Models, Computerized Simulation, Dynamic Models, Flow Distribution, Gas Dynamics

Scientific paper

The behavior of the gaseous phase in a barred galaxy is followed by computer simulations of the gas flow in a fixed potential formed by a bar and a disk. The results support the hypothesis that the dark lanes observed on the leading edge of the bar in many SB galaxies coincide with shock waves. Furthermore, the results exclude an outflow explanation of the arms but suggest these to be formed mechanically by the bar. Ring-shaped features were not reproduced, but double arms were occasionally detected.

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