On the role of the magnetic field in a wave theory of the spiral structure of galaxies

Details On the role of the magnetic field in a wave theory of the spiral structure of galaxies On the role of the magnetic field in a wave theory of the spiral structure of galaxies

Jun 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970ap%26ss...7..437m&link_type=abstract

Astrophysics and Space Science, Volume 7, Issue 3, pp.437-445

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

The spiral waves in a model galaxy consisting of the differentially rotating interstellar gas and Population I are considered. The instability of spiral waves in the presence of differential rotation and magnetic field is found. This instability may lead as well as the Landau-instability found by Marochnik and Suchkov (1968, 1969) to the formation of an observable spiral pattern in a short time. It may play a definitive role in the spiral structure formation in galaxies with weak Population II.

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