Nonlinear evolutions of large amplitude oblique whistler waves

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dc.contributor.authorDokgo, Kyunghwanko
dc.contributor.authorMin, Kyoung-Wookko
dc.contributor.authorChoi, Cheong-Rimko
dc.contributor.authorWoo, Minhoko
dc.contributor.authorYoon, Peter H.ko
dc.contributor.authorHwang, Kyoung-Jooko
dc.identifier.citationPHYSICS OF PLASMAS, v.25, no.6, pp.062904-
dc.description.abstractThis paper investigates nonlinear evolutions of large amplitude oblique whistler waves (LOWWs) and the interaction with electrons using one-dimensional electromagnetic kinetic simulations. The present research is motivated by recent studies about the nonlinear phenomena of LOWWs. When the propagation angle is not close to the resonance cone angle, the trapping of electrons in the electric potential of LOWWs leads to a moderate damping and a mild acceleration of the electrons via the O'Neil-type damping. In contrast, when the propagation angle of LOWWs is close to the resonance cone angle, the LOWWs undergo a heavy damping accompanied by the stochastic thermalization of the electrons, especially in the perpendicular direction. It is found that the stochastic parameter S, defined by S = 16k(parallel to)(2) (e/m(e)) Phi(0) vertical bar j(0)(k perpendicular to rho)vertical bar/omega(2)(ce), is a crucial factor determining the damping process. This result demonstrates the importance of self-consistent electron kinetic effects, which are not included in the previous single-particle or fluid approach. The implications of the present findings are discussed. Published by AIP Publishing.-
dc.publisherAMER INST PHYSICS-
dc.titleNonlinear evolutions of large amplitude oblique whistler waves-
dc.citation.publicationnamePHYSICS OF PLASMAS-
dc.contributor.localauthorMin, Kyoung-Wook-
dc.contributor.nonIdAuthorChoi, Cheong-Rim-
dc.contributor.nonIdAuthorWoo, Minho-
dc.contributor.nonIdAuthorYoon, Peter H.-
dc.contributor.nonIdAuthorHwang, Kyoung-Joo-
dc.subject.keywordPlusRADIATION-BELT ELECTRONS-
dc.subject.keywordPlusPITCH ANGLE SCATTERING-
dc.subject.keywordPlusCOHERENT VLF WAVES-
dc.subject.keywordPlusMODE WAVES-
dc.subject.keywordPlusCHORUS WAVES-
dc.subject.keywordPlusLION ROARS-
dc.subject.keywordPlusSTOCHASTIC ACCELERATION-
dc.subject.keywordPlusENERGETIC ELECTRONS-
dc.subject.keywordPlusMAGNETOSONIC WAVES-
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