Effects of suprathermal particles in space plasmas

dc.contributor.author	Pierrard, V.
dc.date	2012
dc.date.accessioned	2016-03-29T10:07:36Z
dc.date.available	2016-03-29T10:07:36Z
dc.identifier.uri	https://orfeo.belnet.be/handle/internal/2988
dc.description	Velocity distribution functions of plasma particles measured by spacecraft in the solar wind and many other space plasmas show enhanced suprathermal tails. The presence of non-thermal populations in space plasmas has important consequences concerning particle acceleration and plasma heating. These effects are well described by the kinetic approach where the suprathermal tails can be represented by different velocity distribution functions such as a sum of two Maxwellians with different temperatures or, better, with a Kappa distribution decreasing as a power law of the velocity. In the present work, we show the consequences of the velocity filtration effect. Moreover, we establish the friction and diffusion coefficients of the Coulomb collision Fokker-Planck operator for background particles characterized by a Kappa distribution.
dc.language	eng
dc.title	Effects of suprathermal particles in space plasmas
dc.type	Conference
dc.subject.frascati	Physical sciences
dc.audience	Scientific
dc.source.title	AIP Conference Proceedings
dc.source.volume	1436
dc.source.page	61-66
Orfeo.peerreviewed	No
dc.identifier.doi	10.1063/1.4723591
dc.identifier.scopus	2-s2.0-84861925159