Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times

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 activ...

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Bibliographic Details
Other Authors: Wilson, A
Format: Conference Object
Language:unknown
Published: ESA PUBLICATIONS DIVISION C/O ESTEC 2000
Subjects:
QB Astronomy
Arctic
Online Access:http://wrap.warwick.ac.uk/11432/
id ftuwarwick:oai:wrap.warwick.ac.uk:11432
record_format openpolar
spelling ftuwarwick:oai:wrap.warwick.ac.uk:11432 2023-05-15T14:26:05+02:00 Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times Wilson, A 2000 http://wrap.warwick.ac.uk/11432/ unknown ESA PUBLICATIONS DIVISION C/O ESTEC 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. QB Astronomy Conference Item NonPeerReviewed 2000 ftuwarwick 2022-03-16T20:08:39Z 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. Conference Object Arctic The University of Warwick: WRAP - Warwick Research Archive Portal
institution Open Polar
collection The University of Warwick: WRAP - Warwick Research Archive Portal
op_collection_id ftuwarwick
language unknown
topic QB Astronomy
spellingShingle QB Astronomy
Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
topic_facet QB Astronomy
description 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.
author2 Wilson, A
format Conference Object
title Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
title_short Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
title_full Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
title_fullStr Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
title_full_unstemmed Enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
title_sort enhanced pitch angle diffusion due to electron-whistler interactions during disturbed times
publisher ESA PUBLICATIONS DIVISION C/O ESTEC
publishDate 2000
url http://wrap.warwick.ac.uk/11432/
genre Arctic
genre_facet Arctic
op_relation 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.
_version_ 1766298563173679104

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