Magnetically Driven Jets from Accretion Disks: Nonsteady 2.5D-MHD Simulation View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1998

AUTHORS

T. Kudoh , R. Matsumoto , K. Shibata

ABSTRACT

We present the results of 2.5-dimensional MHD simulations for jet formation from accretion disks. Although the jets in nonsteady MHD simulations (e.g, Uchida & Shibata 1985) have often been referred to as transient phenomena resulting from a special choice of initial conditions, we found that the basic physics of these nonsteady jets are able to be understood with a theory of steady jets. (1) The velocity dependence on the field strength (Vjet ∝ B1/3 for weak magnetic field) is in rough agreement with that of the one-dimensional steady solutions (Kudoh & Shibata 1995, 1997a, 1997b). The velocity of the jet is of order of the Keplerian velocity of the disk for a wide range of parameters. (2) The ejection point of the jet is determined by the effective potential which results from the gravitational force and the centrifugal force along a field line (Blandford & Payne 1982). More... »

PAGES

143-148

References to SciGraph publications

Book

TITLE

Observational Plasma Astrophysics: Five Years of Yohkoh and Beyond

ISBN

978-94-010-6198-8
978-94-011-5220-4

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-94-011-5220-4_23

DOI

http://dx.doi.org/10.1007/978-94-011-5220-4_23

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1039221388


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