Pressure-Driven Outflow and Magneto-Centrifugal Wind from a Dynamo Active Disc

Details Pressure-Driven Outflow and Magneto-Centrifugal Wind from a Dynamo Active Disc Pressure-Driven Outflow and Magneto-Centrifugal Wind from a Dynamo Active Disc

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ptep.proc..347d&link_type=abstract

Plasma Turbulence and Energetic Particles in Astrophysics, Proceedings of the International Conference, Cracow (Poland), 5-10 Se

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

We present a numerical model of an accretion disc with mean-field dynamo action that develops pressure-driven collimated outflow near the rotation axis and a centrifugally driven uncollimated wind in the outer parts. The jet is collimated and confined by the azimuthal magnetic field that is produced by the dynamo in the disc and advected to the disc corona. The jet is hot and dense, but has low angular momentum. We also briefly discuss the possible generation of magnetic fields in a jet by the screw dynamo.

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