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Statistical and Scaling Features of Fluctuations in the Dissipation Range During a Reconnection Event
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2015 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 804, no 1, 19Article in journal (Refereed) Published
Abstract [en]

Reconnection events in space plasmas are accompanied by the occurrence of large-amplitude turbulent fluctuations of the magnetic and electric field, covering a wide range of temporal and spatial scales. Here, we study the scaling and statistical features of magnetic and electric field fluctuations below the ion-gyroperiod (i.e., in the dissipation domain) by carefully investigating the occurrence of local or global scaling features during a reconnection event studied by Eastwood et al. Our results point toward the presence of a global scale invariance, i.e., a mono-fractal nature, of fluctuations above the ion-cyclotron frequency and at spatial scales near the ion-inertial length.

Place, publisher, year, edition, pages
2015. Vol. 804, no 1, 19
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Astronomy, Astrophysics and Cosmology
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URN: urn:nbn:se:uu:diva-256131DOI: 10.1088/0004-637X/804/1/19ISI: 000354189500019OAI: oai:DiVA.org:uu-256131DiVA: diva2:824771
Available from: 2015-06-22 Created: 2015-06-22 Last updated: 2017-12-04Bibliographically approved

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Yordanova, Emiliya

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