Cyclotron amplification of whistler-mode waves: a parametric study relevant to discrete VLF emissions in the earth's magnetosphere
Cyclotron amplification of whistler-mode waves: a parametric study relevant to discrete VLF emissions in the earth's magnetosphere
We study the non linear amplification of VLF waves in the earth's magnetosphere. Particular attention is paid to zero order distribution functions of electrons in which there is a sharp step with respect to parallel velocity. It is shown that such steps strongly favour both the linear and non linear amplification processes. The results obtained are discussed in the light of recent observations of VLF emissions, particularly those of Bell and co workers at Stanford University.
Triggered VLF emissions ELectron anisotropy Non linear wave particle interactions space plasma theory
1-6
Pasmanik, DL
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Demekhov, AG
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Nunn, D
5115be8c-b699-427b-b7df-8795398381e5
Trakhtengerts, VY
9cbc275c-ce25-4430-8bfd-b141fed277ff
Rycroft, MJ
48559448-2bca-4cbd-a0f2-26cb41385f50
2002
Pasmanik, DL
1ac9d833-79eb-40d9-8661-9ecadb79fc38
Demekhov, AG
336ce0cb-4990-4b98-bdc9-640ff1327a7d
Nunn, D
5115be8c-b699-427b-b7df-8795398381e5
Trakhtengerts, VY
9cbc275c-ce25-4430-8bfd-b141fed277ff
Rycroft, MJ
48559448-2bca-4cbd-a0f2-26cb41385f50
Pasmanik, DL, Demekhov, AG, Nunn, D, Trakhtengerts, VY and Rycroft, MJ
(2002)
Cyclotron amplification of whistler-mode waves: a parametric study relevant to discrete VLF emissions in the earth's magnetosphere.
Journal of Geophysical Research, 107 (A8), .
Abstract
We study the non linear amplification of VLF waves in the earth's magnetosphere. Particular attention is paid to zero order distribution functions of electrons in which there is a sharp step with respect to parallel velocity. It is shown that such steps strongly favour both the linear and non linear amplification processes. The results obtained are discussed in the light of recent observations of VLF emissions, particularly those of Bell and co workers at Stanford University.
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Published date: 2002
Keywords:
Triggered VLF emissions ELectron anisotropy Non linear wave particle interactions space plasma theory
Organisations:
Electronics & Computer Science
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Local EPrints ID: 258985
URI: http://eprints.soton.ac.uk/id/eprint/258985
ISSN: 0148-0227
PURE UUID: dab54e3e-20f7-45ee-9835-325deb76e5b4
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Date deposited: 04 Mar 2004
Last modified: 14 Mar 2024 06:17
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Contributors
Author:
DL Pasmanik
Author:
AG Demekhov
Author:
D Nunn
Author:
VY Trakhtengerts
Author:
MJ Rycroft
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