Surface-wave instabilities in a plasma rotating with step-like frequency profile
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedade Brasileira de Física
2009
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| _version_ | 1876468400234954752 |
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| author | A.B. Mikhailovskii |
| author_facet | A.B. Mikhailovskii |
| contents | Surface-wave instabilities in a plasma rotating with step-like frequency profile A.B. Mikhailovskii V.D. Pustovitov R.M.O. Galvão C.H.S. Amador J.G. Lominadze A.P. Churikov O.A. Kharshiladze Física, Astronomía y Matemáticas Magnetorotational instability Plasma rotational instability An approach for the theory of nonlocal magnetorotational and convective instabilities in a rotating plasma is developed, on the basis of the surface wave concept, which allows the derivation of useful analytical results.It is assumed that the rotation frequency has a step-like profile, so that a narrow transition layer separates two regions with different rotation frequencies. The one-fluid magnetohydrodynamic (MHD) model for description of the perturbed plasma dynamics is used. It is shown that in the case of magnetized plasma the main properties of the nonlocal (surface-wave) instabilities are similar to those of the local ones. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413555014 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.1 Vol.39 |
| format | Artículo científico |
| id | redalyc_46413555014 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Surface-wave instabilities in a plasma rotating with step-like frequency profile A.B. Mikhailovskii Física, Astronomía y Matemáticas Magnetorotational instability Plasma rotational instability Surface-wave instabilities in a plasma rotating with step-like frequency profile A.B. Mikhailovskii V.D. Pustovitov R.M.O. Galvão C.H.S. Amador J.G. Lominadze A.P. Churikov O.A. Kharshiladze Física, Astronomía y Matemáticas Magnetorotational instability Plasma rotational instability An approach for the theory of nonlocal magnetorotational and convective instabilities in a rotating plasma is developed, on the basis of the surface wave concept, which allows the derivation of useful analytical results.It is assumed that the rotation frequency has a step-like profile, so that a narrow transition layer separates two regions with different rotation frequencies. The one-fluid magnetohydrodynamic (MHD) model for description of the perturbed plasma dynamics is used. It is shown that in the case of magnetized plasma the main properties of the nonlocal (surface-wave) instabilities are similar to those of the local ones. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413555014 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.1 Vol.39 |
| title | Surface-wave instabilities in a plasma rotating with step-like frequency profile |
| topic | Física, Astronomía y Matemáticas Magnetorotational instability Plasma rotational instability |
| url | https://www.redalyc.org/articulo.oa?id=46413555014 |