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Magnetorotational instability in nonmagnetized plasma |
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| Authors: | AB Mikhailovskii AP Churikov VS Tsypin |
| Institution: | a Institute of Nuclear Fusion, Russian Research Center Kurchatov Institute, Kurchatov Sq., 1, Moscow 123182, Russia b Kharadze Abastumani National Astrophysical Observatory, Kazbegi ave. 2a, Tbilisi 0160, Georgia c Syzran Branch of Samara Technical University, 45, Sovetskaya Str., Syzran, Samara Region 446001, Russia d Brazilian Center of Physics Research, Rua Xavier Sigaud 150, Rio de Janeiro, BR-22290180, Brazil |
| Abstract: | It is shown that the magnetorotational instability (MRI) can be driven in nonmagnetized plasma. In this case, in contrast to the case of strongly magnetized plasma, radial derivative of plasma rotation frequency should be positive for such a driving. The characteristic wave lengths of MRI in nonmagnetized plasma are of the same order of magnitude as those for the Weibel instability. |
| Keywords: | 52 30 Jb 52 35 Py |
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