Generation of magnetic seed fields in protogalactic clouds due to plasma-neutral gas friction

Details Generation of magnetic seed fields in protogalactic clouds due to plasma-neutral gas friction Generation of magnetic seed fields in protogalactic clouds due to plasma-neutral gas friction

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...334..388w&link_type=abstract

Astronomy and Astrophysics, v.334, p.388-394 (1998)

Astronomy and Astrophysics

Astrophysics

12

Galaxies: Magnetic Fields, Galaxies: Formation, Methods: Numerical, Cosmology: Miscellaneous

Scientific paper

We show that plasma - neutral gas friction in a weakly ionized rotating protogalactic system creates magnetic fields of seed field order. For these purposes we present results of 2-fluid simulations. Considering primordial gas clouds, this mechanism yields a magnetic field of the order of 10(-15) G on time scales of 10(6) yr and spatial scales of several hundred parsec. Such fields are a reasonable input for further amplification processes.

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