Spectrum of imbalanced Alfvénic turbulence at ion-kinetic scales in the solar wind

dc.contributor.author	Gogoberidze, G.
dc.contributor.author	Voitenko, Y.M.
dc.date	2020
dc.date.accessioned	2020-09-24T16:26:52Z
dc.date.available	2020-09-24T16:26:52Z
dc.identifier.uri	https://orfeo.belnet.be/handle/internal/7615
dc.description	Using a semi-phenomenological model of the imbalanced Alfvénic turbulence, we study the turbulence transition from magnetohydrodynamic to sub-ion kinetic scales in the conditions typical for the fast solar wind. We show that the transition takes place in a wide wave number interval where the energy spectrum does not follow any power law. For larger turbulence imbalances, both boundaries of the transition wave number interval shift to larger scales. The energy exchange between dominant and subdominant components of the turbulence is essential in the model reducing the imbalance at kinetic scales; however, the total balance is never reached. Our results are compatible with recent solar wind observations at ion scales and numerical simulations of imbalanced turbulence.
dc.language	eng
dc.title	Spectrum of imbalanced Alfvénic turbulence at ion-kinetic scales in the solar wind
dc.type	Article
dc.subject.frascati	Physical sciences
dc.audience	Scientific
dc.subject.free	Solar wind
dc.subject.free	Turbulence
dc.source.title	Astrophysics and Space Science
dc.source.volume	365
dc.source.issue	9
dc.source.page	A149
Orfeo.peerreviewed	Yes
dc.identifier.doi	10.1007/s10509-020-03865-8