Study of reconnection-associated multi-scale fluctuations with Cluster and Double Star

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dc.creatorVörös, Z.
dc.creatorNakamura, R.
dc.creatorSergeev, V.
dc.creatorBaumjohann, W.
dc.creatorRunov, A.
dc.creatorZhang, T. L.
dc.creatorVolwerk, M.
dc.creatorTakada, T.
dc.creatorJankovičová, D.
dc.creatorLucek, E.
dc.creatorRème, H.
dc.date2008-06-11
dc.date.accessioned2026-07-07T09:43:57Z
dc.date.available2026-07-07T09:43:57Z
dc.descriptionThe objective of the paper is to asses the specific spectral scaling properties of magnetic reconnection associated fluctuations/turbulence at the Earthward and tailward outflow regions observed simultaneously by the Cluster and Double Star (TC-2) spacecraft on September 26, 2005. Systematic comparisons of spectral characteristics, including variance anisotropy and scale-dependent spectral anisotropy features in wave vector space were possible due to the well-documented reconnection events, occurring between the positions of Cluster (X = -14--16 $R_e$) and TC-2 (X = -6.6 $R_e$). Another factor of key importance is that the magnetometers on the spacecraft are similar. The comparisons provide further evidence for asymmetry of physical processes in Earthward/tailward reconnection outflow regions. Variance anisotropy and spectral anisotropy angles estimated from the multi-scale magnetic fluctuations in the tailward outflow region show features which are characteristic for magnetohydrodynamic cascading turbulence in the presence of a local mean magnetic field. The multi-scale magnetic fluctuations in the Earthward outflow region are exhibiting more power, lack of variance and scale dependent anisotropies, but also having larger anisotropy angles. In this region the magnetic field is more dipolar, the main processes driving turbulence are flow breaking/mixing, perhaps combined with turbulence ageing and non-cascade related multi-scale energy sources.
dc.description30 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0806.1829
dc.identifierhttp://arxiv.org/abs/0806.1829
dc.identifierJournal of Geophysical Research, vol. 113, A07S29, 2008
dc.identifierdoi:10.1029/2007JA012688
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162700
dc.subjectSpace Physics
dc.subjectPlasma Physics
dc.titleStudy of reconnection-associated multi-scale fluctuations with Cluster and Double Star
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