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Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
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UNSPECIFIED (2000) Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times. In: 5th International Conference on Substorms, ARCTIC & ANTARCTIC RES INST CONGRESS CTR, ST PETERSBURG, RUSSIA, MAY 16-20, 2000. Published in: PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON SUBSTORMS, 443 pp. 217-220. ISBN 92-9092-772-0. ISSN 0379-6566.
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Abstract
During periods of increased magnetospheric activity, whistler wave emissions have been observed with increased wave amplitudes. We consider a pitch angle diffusion mechanism that is shown to scale with whistler wave amplitude and hence is 'switched on' during these periods of intense activity.
We consider the interaction between relativistic electrons and two oppositely directed, parallel propagating whistler mode waves. We show that for intense whistlers this process is stochastic and results in strong electron pitch angle diffusion.
We show that the interaction is rapid, occur on timescales of the order of tens of electron gyroperiods and that the interaction is sensitive to wave amplitude, wave frequency and electron energy.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QB Astronomy | ||||
Series Name: | ESA SPECIAL PUBLICATIONS | ||||
Journal or Publication Title: | PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON SUBSTORMS | ||||
Publisher: | ESA PUBLICATIONS DIVISION C/O ESTEC | ||||
ISBN: | 92-9092-772-0 | ||||
ISSN: | 0379-6566 | ||||
Editor: | Wilson, A | ||||
Official Date: | 2000 | ||||
Dates: |
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Volume: | 443 | ||||
Number of Pages: | 4 | ||||
Page Range: | pp. 217-220 | ||||
Publication Status: | Published | ||||
Title of Event: | 5th International Conference on Substorms | ||||
Location of Event: | ARCTIC & ANTARCTIC RES INST CONGRESS CTR, ST PETERSBURG, RUSSIA | ||||
Date(s) of Event: | MAY 16-20, 2000 |
Data sourced from Thomson Reuters' Web of Knowledge
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