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dc.contributor.authorSchreiner, C.
dc.contributor.authorSpanier, F.
dc.contributor.authorKilian, P.
dc.date.accessioned2017-03-20T08:11:49Z
dc.date.available2017-03-20T08:11:49Z
dc.date.issued2017
dc.identifier.citationSchreiner, C. et al. 2017. Particle scattering off of right-handed dispersive waves. Astrophysical journal, 834(2): Article no 161. [http://iopscience.iop.org/journal/0004-637X]en_US
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/20883
dc.identifier.urihttp://dx.doi.org/10.3847/1538-4357/834/2/161
dc.identifier.urihttp://iopscience.iop.org/article/10.3847/1538-4357/834/2/161
dc.description.abstractResonant scattering of fast particles off low frequency plasma waves is a major process determining transport characteristics of energetic particles in the heliosphere and contributing to their acceleration. Usually, only Alfvén waves are considered for this process, although dispersive waves are also present throughout the heliosphere. We investigate resonant interaction of energetic electrons with dispersive, right-handed waves. For the interaction of particles and a single wave a variable transformation into the rest frame of the wave can be performed. Here, well-established analytic models derived in the framework of magnetostatic quasi-linear theory can be used as a reference to validate simulation results. However, this approach fails as soon as several dispersive waves are involved. Based on analytic solutions modeling the scattering amplitude in the magnetostatic limit, we present an approach to modify these equations for use in the plasma frame. Thereby we aim at a description of particle scattering in the presence of several waves. A particle-in-cell code is employed to study wave–particle scattering on a micro-physically correct level and to test the modified model equations. We investigate the interactions of electrons at different energies (from 1 keV to 1 MeV) and right-handed waves with various amplitudes. Differences between model and simulation arise in the case of high amplitudes or several waves. Analyzing the trajectories of single particles we find no microscopic diffusion in the case of a single plasma wave, although a broadening of the particle distribution can be observeden_US
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.subjectPlasmasen_US
dc.subjectScatteringen_US
dc.subjectSun: heliosphereen_US
dc.subjectWavesen_US
dc.titleParticle scattering off of right-handed dispersive wavesen_US
dc.typeArticleen_US
dc.contributor.researchID25738356 - Schreiner, Cedric
dc.contributor.researchID25161814 - Spanier, Felix Alexander


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