Magnetic fields in spiral galaxies

Details Magnetic fields in spiral galaxies Magnetic fields in spiral galaxies

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987qjras..28..209w&link_type=abstract

Royal Astronomical Society, Quarterly Journal (ISSN 0035-8738), vol. 28, Sept. 1987, p. 209-216.

Astronomy and Astrophysics

Astronomy

2

Astronomical Models, Interstellar Magnetic Fields, Spiral Galaxies, Dynamo Theory, Gas Dynamics, Optical Polarization, Radio Spectra, Synchrotron Radiation, Visible Spectrum

Scientific paper

The methods and results of radio and optical studies of galactic magnetic fields are examined. Field strengths based on the minimum energy condition for sources of synchrotron radiation range from about 3 microns gauss to 15 microns gauss with the most commonly observed field geometry being the bisymmetric spiral. Current understanding of galactic dynamos driven by differential rotation and helical motions of ionized gas is briefly discussed.

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