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Suprathermal Kappa populations in the solar wind: From observational evidences to realistic modeling

dc.contributor.authorLazar, M.
dc.contributor.authorPoedts, S.
dc.contributor.authorFichtner, H.
dc.contributor.authorPierrard, V.
dc.contributor.authorYoon, P.H.
dc.date2016
dc.date.accessioned2017-03-10T10:42:18Z
dc.date.available2017-03-10T10:42:18Z
dc.identifier.isbn978-1-5108-2947-3
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/4894
dc.descriptionSuprathermal populations are ubiquitous in the solar wind, indicating plasma states out of thermal equilibrium, and an excess of free energy expected to enhance the kinetic instabilities. The generally accepted representation of Kappa distributions usually invoked to describe these populations in space plasma physics allows for two different alternatives, namely assuming the temperature either dependent or independent on the k-index of the distribution. Here we demonstrate that only a k-dependent temperature confirms the expectations providing a systematic stimulation of the temperature anisotropy instabilities, and present observational evidences in the favor of this approach.
dc.languageeng
dc.titleSuprathermal Kappa populations in the solar wind: From observational evidences to realistic modeling
dc.typeConference
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeFree energy
dc.subject.freeSolar wind
dc.subject.freeKappa distribution
dc.subject.freeKinetic instability
dc.subject.freePlasma state
dc.subject.freeRealistic model
dc.subject.freeSpace plasma physics
dc.subject.freeTemperature anisotropy instability
dc.subject.freeThermal equilibriums
dc.subject.freePlasma diagnostics
dc.source.titleEPS 2016 43rd European Physical Society Conference on Plasma Physics
dc.source.volume40A
dc.source.page457-460
Orfeo.peerreviewedNo
dc.identifier.scopus2-s2.0-85013988183
dc.source.editorMantica, P.
dc.source.editorFajardo, M.
dc.source.editorPoedts, S.
dc.source.editorGiruzzi, G.
dc.source.editorGans, T.
dc.source.editorVennekens, N.


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