Magnetorotational instability in a nonuniform magnetic field |
| |
Authors: | V I Ilgisonis and I V Khalzov |
| |
Institution: | (1) Russian Research Centre Kurchatov Institute, pl. Akademika Kurchatova 1, Moscow, 123182, Russia;(2) University of Saskatchewan, Saskatoon, S7N5E2, Canada |
| |
Abstract: | It is shown that the characteristics of the magnetorotational instability noticeably change in the presence of the inhomogeneity
of a magnetic field in which rotation occurs. A decrease in the magnetic field with an increase in the distance from the rotation
center, which is typical for astrophysical objects, can lead to a significant decrease in the threshold velocity of the object
medium rotation, as well as to mitigation of the requirements on a rotation velocity profile that are necessary for the development
of instability. Other examples that demonstrate the indicated effects are given.
Original Russian Text ? V.I. Ilgisonis, I.V. Khalzov, 2007, published in Pis’ma v Zhurnal éksperimental’noĭ i Teoreticheskoĭ
Fiziki, 2007, Vol. 86, No. 11, pp. 815–818. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|