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On the relativistic damping of transverse waves propagating in magnetized Vlasov plasmas
被引:0
|作者:
Lazar, M.
[1
]
Schlickeiser, R.
[2
]
机构:
[1] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 6600, Romania
[2] Ruhr Univ Bochum, Inst Theoret Phys, Lehrstuhl Weltraum & Astrophys 4, D-44780 Bochum, Germany
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D O I:
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中图分类号:
O4 [物理学];
学科分类号:
0702 ;
摘要:
The general relativistic dispersion relations of transverse waves parallel propagating in magnetized Vlasov plasmas, are reconsidered. In a previous paper [Lazar and Schlickeiser, Canadian J. Phys. 81, 1377 (2003)] we have derived these equations by a rigorous relativistic kinetic theory and by a correct analytical continuation for all complex frequencies. Detailed expressions are more explicitly presented here for residues to completely describe the damped waves-forward or backward moving waves, and left-handed or right-handed polarized waves. The cyclotron damping occurs when the circularly-polarized wave frequency nearly coincides with the gyrofrequency of plasma particle, modified by the relativistic Doppler effect in its own referential. The rigorous analysis of relativistically correct dispersion equations leads to an important correction of nonrelativistic theory: the superluminal EM waves undergo no cyclotron damping in magnetized equilibrium plasmas.
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页码:130 / 132
页数:3
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