A Parametric Study for the Generation of Ion Bernstein Modes from a Discrete Spectrum to a Continuous One in the Inner Magnetosphere. II. Particle-In-Cell Simulations

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dc.contributor.ORCID0000-0003-2489-3571 (Chen, L)en_US
dc.contributor.authorSun, J.en_US
dc.contributor.authorGao, X.en_US
dc.contributor.authorLu, Q.en_US
dc.contributor.authorChen, Lunjin (en_US
dc.contributor.authorTao, X.en_US
dc.contributor.authorWang, S.en_US
dc.contributor.utdAuthorChen, Lunjinen_US
dc.date.accessioned2016-09-26T19:54:49Z
dc.date.available2016-09-26T19:54:49Z
dc.date.created2016-02-10en_US
dc.date.issued2016-02-10en_US
dc.description.abstractIn this paper, we perform one-dimensional particle-in-cell simulations to investigate the properties of perpendicular magnetosonic waves in a plasma system consisting of three components: cool electrons, cool protons, and tenuous ring distribution protons, where the waves are excited by the tenuous proton ring distribution. Consistent with the linear theory, the spectra of excited magnetosonic waves can change from discrete to continuous due to the overlapping of adjacent unstable wave modes. The increase of the proton to electron mass ratio, the ratio of the light speed to the Alfven speed, or the concentration of protons with a ring distribution tends to result in a continuous spectrum of magnetosonic waves, while the increase of the ring velocity of the tenuous proton ring distribution leads to a broader one, but with a discrete structure. Moreover, the energization of both cool electrons and protons and the scattering of ring distribution protons due to the excited magnetosonic waves are also observed in our simulations, which cannot be predicted by the linear theory. Besides, a thermalized proton ring distribution may lead to the further excitation of several lower discrete harmonics with their frequencies about several proton gyrofrequencies.en_US
dc.description.sponsorshipNational Science Foundation of China (Grant Nos. 41331067, 41474125, 11220101002, 11235009, 41174124, and 41121003), 973 Program (2013CBA01503 and 2012CB825602), and CAS Key Research Program (KZZD-EW-01-4).en_US
dc.identifier.bibliographicCitationSun, J., X. Gao, Q. Lu, L. Chen, et al. 2016. "A parametric study for the generation of ion Bernstein modes from a discrete spectrum to a continuous one in the inner magnetosphere. II. Particle-in-cell simulations." Physics of Plasmas 23(2), doi:10.1063/1.4941284.en_US
dc.identifier.issn1070-664Xen_US
dc.identifier.issue2en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5074
dc.identifier.volume23en_US
dc.language.isoenen_US
dc.publisherAmerican Institute of Physics Incen_US
dc.relation.urihttp://dx.doi.org/10.1063/1.4941284
dc.rights©2016 AIP Publishing LLC.en_US
dc.sourcePhysics of Plasmas
dc.subjectProtonsen_US
dc.subjectMagnetohydrodynamic wavesen_US
dc.subjectMagnetic fieldsen_US
dc.subjectNuclear spinen_US
dc.titleA Parametric Study for the Generation of Ion Bernstein Modes from a Discrete Spectrum to a Continuous One in the Inner Magnetosphere. II. Particle-In-Cell Simulationsen_US
dc.type.genreArticleen_US

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