Generation of a dynamo magnetic field in a protoplanetary accretion disk

Details Generation of a dynamo magnetic field in a protoplanetary accretion disk Generation of a dynamo magnetic field in a protoplanetary accretion disk

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..148s&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 148 (SEE N87-23341 16-91)

Statistics

Computation

Accretion Disks, Dynamo Theory, Planetary Evolution, Planetary Magnetic Fields, Protoplanets, Stellar Magnetic Fields, Astrophysics, Black Holes (Astronomy), Computation, Deposition, Disk Galaxies

Scientific paper

A new computational technique is developed that allows realistic calculations of dynamo magnetic field generation in disk geometries corresponding to protoplanetary and protostellar accretion disks. The approach is of sufficient generality to allow, in the future, a wide class of accretion disk problems to be solved. Here, basic modes of a disk dynamo are calculated. Spatially localized oscillatory states are found to occur in Keplerain disks. A physical interpretation is given that argues that spatially localized fields of the type found in these calculations constitute the basic modes of a Keplerian disk dynamo.

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