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Computational MHD Jets

Published online by Cambridge University Press:  19 July 2016

Kazunari Shibata
Kazunari Shibata*
Affiliation:
Department of Earth Sciences, Aichi University of Education, Kariya, Aichi 448, Japan

Abstract

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By using two-dimensional magnetohydrodynamic (MHD) code, the following non-steady MHD jets and outflows are studied in relation to jets ejected from central regions of galaxies: (1) a jet driven by gas pressure gradient, collimated by vertical magnetic fields (as a model of bipolar flows ejected from a hot bubble created by starbursts); (2) a magnetic twist jet which is accelerated and collimated by J × B force in relaxing magnetic twists generated by the interaction of poloidal fields with a rotating disk (as a model of jets from active galactic nuclei); (3) a magnetic-loop-outflow resulting from the Parker instability, which may account for the initial acceleration of the magnetic twist jet and nonthermal emissions near nuclear accretion disks.

Type
8. The Role of Magnetic Fields in Radio Source Jets and Extended Radio Lobes
Information
Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 419 - 424
Copyright
Copyright © Kluwer 1990 

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