Magnetic field distribution in spiral galaxies

Details Magnetic field distribution in spiral galaxies Magnetic field distribution in spiral galaxies

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...148..335r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 148, no. 2, July 1985, p. 335-343.

Astronomy and Astrophysics

Astrophysics

67

Disk Galaxies, Dynamo Theory, Galactic Rotation, Interstellar Magnetic Fields, Magnetic Field Configurations, Spiral Galaxies, Andromeda Galaxy, Galactic Structure, Interstellar Gas, Magnetohydrodynamic Turbulence, Milky Way Galaxy, Radial Distribution

Scientific paper

The spatial distribution of large-scale magnetic fields in gaseous discs of spiral galaxies is discussed. The authors propose an asymptotic method of solution of the kinematic turbulent dynamo equations that is based on the smallness of the ratio of the disc thickness to its radius. All generated modes of the large-scale magnetic field have similar distributions over the vertical coordinate. However, a great number of modes with different radial behavior are excited simultaneously. A special attention is paid to comparison of these results with observations of the magnetic fields of spiral galaxies, e.g. the Galaxy, M31, IC 342, M81.

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