Velocity distributions and proton beam production in the solar wind

dc.contributor.author	Pierrard, V.
dc.contributor.author	Voitenko, Y.
dc.date	2010
dc.date.accessioned	2016-03-30T12:01:17Z
dc.date.available	2016-03-30T12:01:17Z
dc.identifier.uri	https://orfeo.belnet.be/handle/internal/3194
dc.description	Helios, Ulysses, and Wind spacecraft have observed the velocity distribution functions (VDFs) of solar wind particles deviating significantly from Maxwellians. We review recent models using different approximations and mechanisms that determine various observed characteristics of the VDFs for the electrons, protons and minor ions. A new generation mechanism is proposed for super-Alfvénic proton beams and tails that are often observed in the fast solar wind. The mechanism is based on the proton trapping and acceleration by kinetic Alfvén waves (KAWs), which carry a field-aligned potential well propagating with super-Alfvén velocities.
dc.language	eng
dc.title	Velocity distributions and proton beam production in the solar wind
dc.type	Conference
dc.subject.frascati	Physical sciences
dc.audience	Scientific
dc.source.title	AIP Conference Proceedings
dc.source.volume	1216
dc.source.page	102-105
Orfeo.peerreviewed	No
dc.identifier.doi	10.1063/1.3395812
dc.identifier.scopus	2-s2.0-77952055398