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The Complex Structure Of Magnetic Field Discontinuities In The Turbulent Solar Wind
Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy..
Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy..
Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
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2016 (English)In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 823, no 2, article id L39Article in journal (Refereed) Published
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Text
Abstract [en]

Using high-resolution Cluster satellite observations and a multi-dimensional intermittency technique, we show that the magnetic discontinuities in the turbulent solar wind are connected through the spatial scales, going from proton down to electron scales. In some circumstances, their structure resembles the Harris equilibrium profile in plasmas. Observations are consistent with a scenario where many current layers develop in turbulence and where the outflow of these reconnection events are characterized by complex sub-proton networks of secondary islands, in a self-similar way. Although in the past these pictures have been speculated to be separately ubiquitous, through theories and simulations, the present work confirms that "reconnection in turbulence" and "turbulent reconnection" coexist in space plasmas.

Place, publisher, year, edition, pages
2016. Vol. 823, no 2, article id L39
Keywords [en]
magnetic reconnection, solar wind, turbulence
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-298856DOI: 10.3847/2041-8205/823/2/L39ISI: 000377031700018OAI: oai:DiVA.org:uu-298856DiVA, id: diva2:948335
Funder
EU, FP7, Seventh Framework Programme, 313038/STORMAvailable from: 2016-07-11 Created: 2016-07-11 Last updated: 2017-11-28Bibliographically approved

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Yordanova, Emiliya

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