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Generation of rising-tone chorus in a two-dimensional mirror field by using the general curvilinear PIC code


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dc.contributorXueyi Wang, wangxue@auburn.eduen_US
dc.creatorKe, Yangguang
dc.creatorGao, Xinliang
dc.creatorLu, Quanming
dc.creatorWang, Xueyi
dc.creatorWang, Shui
dc.date.accessioned2020-05-29T13:01:37Z
dc.date.available2020-05-29T13:01:37Z
dc.date.created2017-08
dc.identifier10.1002/2017JA024178en_US
dc.identifier.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017JA024178en_US
dc.identifier.urihttp://hdl.handle.net/11200/49832
dc.description.abstractRecently, the generation of rising-tone chorus has been implemented with one-dimensional (1-D) particle-in-cell (PIC) simulations in an inhomogeneous background magnetic field, where both the propagation of waves and motion of electrons are simply forced to be parallel to the background magnetic field. In this paper, we have developed a two-dimensional (2-D) general curvilinear PIC simulation code and successfully reproduced rising-tone chorus waves excited from an anisotropic electron distribution in a 2-D mirror field. Our simulation results show that whistler waves are mainly generated around the magnetic equator and continuously gain growth during their propagation toward higher-latitude regions. The rising-tone chorus waves are observed off the magnetic equator, which propagate quasi-parallel to the background magnetic field with the wave normal angle smaller than 25 degrees. Due to the propagating effect, the wave normal angle of chorus waves is increasing during their propagation toward higher-latitude regions along an enough curved field line. The chirping rate of chorus waves is found to be larger along a field line with a smaller curvature.en_US
dc.formatPDFen_US
dc.publisherAMER GEOPHYSICAL UNIONen_US
dc.relation.ispartofJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICSen_US
dc.relation.ispartofseries2169-9380en_US
dc.subjectchorus; generation; two dimensional; particle in cellen_US
dc.subjectWHISTLER-MODE WAVES; RADIATION-BELT ELECTRONS; STORM-TIME CHORUS; VLF EMISSIONS; MAGNETOSPHERIC CHORUS; PARTICLE INTERACTIONS; EARTHS MAGNETOSPHERE; RESONANT DIFFUSION; MULTIBAND CHORUS; ELF/VLF CHORUSen_US
dc.titleGeneration of rising-tone chorus in a two-dimensional mirror field by using the general curvilinear PIC codeen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume122en_US
dc.citation.issue8en_US
dc.citation.spage8154en_US
dc.citation.epage8165en_US
dc.description.statusPublisheden_US
dc.creator.orcid0000-0001-5533-5981en_US

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