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Multipoint Measurements of the Electron Jet of Symmetric Magnetic Reconnection with a Moderate Guide Field
Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80303 USA..
Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80303 USA.;Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80303 USA..
Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80303 USA..
Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA..
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2017 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 118, no 26, 265101Article in journal (Refereed) Published
Abstract [en]

We report observations from the Magnetospheric Multiscale (MMS) satellites of the electron jet in a symmetric magnetic reconnection event with moderate guide field. All four spacecraft sampled the ion diffusion region and observed the electron exhaust. The observations suggest that the presence of the guide field leads to an asymmetric Hall field, which results in an electron jet skewed towards the separatrix with a nonzero component along the magnetic field. The jet appears in conjunction with a spatially and temporally persistent parallel electric field ranging from -3 to -5 mV/m, which led to dissipation on the order of 8 nW/m(3). The parallel electric field heats electrons that drift through it, and is associated with a streaming instability and electron phase space holes.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 118, no 26, 265101
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-329633DOI: 10.1103/PhysRevLett.118.265101ISI: 000404347400010PubMedID: 28707935OAI: oai:DiVA.org:uu-329633DiVA: diva2:1143595
Available from: 2017-09-21 Created: 2017-09-21 Last updated: 2017-09-21Bibliographically approved

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Khotyaintsev, Yuri V.

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Swedish Institute of Space Physics, Uppsala Division
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