2014
Kinetic equilibria of relativistic collisionless plasmas in the presence of non-stationary electromagnetic fields
CREMASCHINI, Claudio, Zdeněk STUCHLÍK a Massimo TESSAROTTOZákladní údaje
Originální název
Kinetic equilibria of relativistic collisionless plasmas in the presence of non-stationary electromagnetic fields
Autoři
CREMASCHINI, Claudio, Zdeněk STUCHLÍK a Massimo TESSAROTTO
Vydání
PHYSICS OF PLASMAS, US - Spojené státy americké, 2014, 1070-664X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10305 Fluids and plasma physics
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Organizační jednotka
Filozoficko-přírodovědecká fakulta v Opavě
UT WoS
000334180200082
Klíčová slova anglicky
guiding center motion; rotating black hole; space-time; polarization; accretion; tori
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Návaznosti
GB14-37086G, projekt VaV. GP14-07753P, projekt VaV.
Změněno: 26. 1. 2021 16:53, Mgr. Pavlína Jalůvková
Anotace
V originále
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