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Magnetosheath plasma turbulence and its spatiotemporal evolution as observed by the Cluster spacecraft
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2008 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 100, no 20, 205003- p.Article in journal (Refereed) Published
Abstract [en]

We study the plasma turbulence, at scales larger than the ion inertial length scale, downstream of a quasiparallel bow shock using Cluster multispacecraft measurements. We show that turbulence is intermittent and well described by the extended structure function model, which takes into account the spatial inhomogeneity of the cascade rate. For the first time we use multispacecraft observations to characterize the evolution of magnetosheath turbulence, particularly its intermittency, as a function of the distance from the bow shock. The intermittency significantly changes over the distance of the order of 100 ion inertial lengths, being increasingly stronger and anisotropic away from the bow shock.

Place, publisher, year, edition, pages
2008. Vol. 100, no 20, 205003- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-149372DOI: 10.1103/PhysRevLett.100.205003ISI: 000256206400036OAI: oai:DiVA.org:uu-149372DiVA: diva2:404910
Available from: 2011-03-18 Created: 2011-03-18 Last updated: 2017-12-11Bibliographically approved

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Vaivads, Andris

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