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| Titel |
Magnetic Field Rotations at Kinetic Scales in the Solar Wind |
| VerfasserIn |
Christopher Chen, Lorenzo Matteini, David Burgess, Timothy Horbury |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250104768
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| Publikation (Nr.) |
 EGU/EGU2015-4203.pdf |
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| Zusammenfassung |
| The distribution of spatial angle changes in the solar wind magnetic field is usually attributed
to a mixture of turbulence and other structures. Recent results have suggested that in the
MHD inertial range this distribution may be scale invariant, generated by the turbulence, and
consist mainly of field rotations. Here, we examine the distribution of magnetic field
rotations in the smaller scale kinetic range (from ion to electron scales), where
the turbulence is thought to be dissipated, using combined fluxgate/search-coil
magnetometer data from Cluster. The degree of self-similarity is measured and the spatial
distribution of the fluctuations at different scales is compared. At ion scales, the energy
in angle rotations larger than α drops exponentially with α with e-folding ~10°,
and at electron scales with e-folding |
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