Blaga, Christina (2005) Small radial perturbations of magnetic polytropes. In: British-Romanian-Hungarian N+N+N Workshop for Young Researchers On Plasma- and Astrophysics: from laboratory to outer space Edited by I. Ballai, E. Forgács-Dajka, A. Marcu and K. Petrovay. Publications of the Astronomy Department of the Eötvös University (15). ELTE Sokszorosítóüzeme, Budapest, pp. 201-207.
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Abstract
The paper is devoted to a qualitative analysis of the nonlinear, radial oscillations of magnetic polytropes. The magnetic field is assumed to be purely toroidal. The small adiabatic perturbations are investigated using the normal forms method. The nonadiabatic effects, described with the aid of two additional terms, related to the sources of the energy and energy damping, respectively, are analyzed with the aid of the dynamical systems theory. The numerical examples confirm and complete the qualitative investigation.
| Item Type: | Book Section |
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| Additional Information: | PADEU Volume 15 British-Romanian-Hungarian N+N+N Workshop for Young Researchers On Plasma- and Astrophysics: from laboratory to outer space Edited by I. Ballai, E. Forgács-Dajka, A. Marcu and K. Petrovay |
| Uncontrolled Keywords: | Stars: polytropes, magnetic field, stability |
| Subjects: | Q Science / természettudomány > QB Astronomy, Astrophysics / csillagászat, asztrofizika |
| Depositing User: | Emese Kató |
| Date Deposited: | 25 Oct 2024 11:42 |
| Last Modified: | 25 Oct 2024 11:42 |
| URI: | https://real.mtak.hu/id/eprint/207971 |
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