CREMASCHINI, Claudio, Zdeněk STUCHLÍK and Massimo TESSAROTTO. Kinetic equilibria of relativistic collisionless plasmas in the presence of non-stationary electromagnetic fields. PHYSICS OF PLASMAS. US - Spojené státy americké, 2014, vol. 21, No 3, p. "032902-1"-"032902-7", 7 pp. ISSN 1070-664X. Available from: https://dx.doi.org/10.1063/1.4868238.
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Basic information
Original name Kinetic equilibria of relativistic collisionless plasmas in the presence of non-stationary electromagnetic fields
Authors CREMASCHINI, Claudio, Zdeněk STUCHLÍK and Massimo TESSAROTTO.
Edition PHYSICS OF PLASMAS, US - Spojené státy americké, 2014, 1070-664X.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10305 Fluids and plasma physics
Confidentiality degree is not subject to a state or trade secret
WWW www
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1063/1.4868238
UT WoS 000334180200082
Keywords in English guiding center motion; rotating black hole; space-time; polarization; accretion; tori
Tags UF
Tags International impact, Reviewed
Links GB14-37086G, research and development project. GP14-07753P, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 26/1/2021 16:53.
Abstract
The kinetic description of relativistic plasmas in the presence of time-varying and spatially non-uniform electromagnetic (EM) fields is a fundamental theoretical issue both in astrophysics and plasma physics. This refers, in particular, to the treatmentof collisionless and strongly-magnetized plasmas in the presence of intense radiation sources. In this paper, the problem is investigated in the framework of a covariant gyrokinetic treatment for Vlasov-Maxwell equilibria. The existence of a new class of kinetic equilibria is pointed out, which occur for spatially-symmetric systems. These equilibria are shown to exist in the presence of non-uniform background EM fields and curved space-time. In the non-relativistic limit, this feature permits the determination of kinetic equilibria even for plasmas in which particle energy is not conserved due to the occurrence of explicitly time-dependent EM fields. Finally, absolute stability criteria are established which apply in the case of infini
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