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Observations of tur...
Observations of turbulence within reconnection jet in the presence of guide field
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Huang, S. Y. (author)
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Zhou, M. (author)
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Sahraoui, F. (author)
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- Vaivads, Andris (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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Deng, X. H. (author)
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- André, Mats (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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He, J. S. (author)
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- Fu, Huishan (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen
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Li, H. M. (author)
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Yuan, Z. G. (author)
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Wang, D. D. (author)
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(creator_code:org_t)
- Blackwell Publishing, 2012
- 2012
- English.
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In: Geophysical Research Letters. - : Blackwell Publishing. - 0094-8276 .- 1944-8007. ; 39:L11104
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
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- We present the first comprehensive observations of turbulence properties within high speed reconnection jet in the plasma sheet with moderate guide field. The power spectral density index is about -1.73 in the inertial range, and follows the value of -2.86 in the ion dissipation range. The turbulence is strongly anisotropic in the wave-vector space with the major power having its wave-vector highly oblique to the ambient magnetic field, suggesting that the turbulence is quasi-2D. The measured "dispersion relations" obtained using the k-filtering technique are compared with theory and are found to be consistent with the Alfven-Whistler mode. In addition, both Probability Distribution Functions and flatness results show that the turbulence in the reconnection jet is intermittent (multifractal) at scales less than the proton gyroradius/inertial lengths. The estimated electric field provided by anomalous resistivity caused by turbulence is about 3 mV/m, which is close to the typical reconnection electric field in the magnetotail.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Huang, S. Y.
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Zhou, M.
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Sahraoui, F.
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Vaivads, Andris
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Deng, X. H.
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André, Mats
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show more...
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He, J. S.
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Fu, Huishan
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Li, H. M.
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Yuan, Z. G.
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Wang, D. D.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Geophysical Rese ...
- By the university
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Royal Institute of Technology
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Uppsala University