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Observations of Magnetic Reconnection in the Transition Region of Quasi-Parallel Shocks
Imperial Coll London, Blackett Lab, London, England.
Imperial Coll London, Blackett Lab, London, England;Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.
Imperial Coll London, Blackett Lab, London, England.
Southwest Res Inst, San Antonio, TX USA.
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2019 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 46, no 3, p. 1177-1184Article in journal (Refereed) Published
Abstract [en]

Using observations of Earth's bow shock by the Magnetospheric Multiscale mission, we show for the first time that active magnetic reconnection is occurring at current sheets embedded within the quasi-parallel shock's transition layer. We observe an electron jet and heating but no ion response, suggesting we have observed an electron-only mode. The lack of ion response is consistent with simulations showing reconnection onset on sub-ion time scales. We also discuss the impact of electron heating in shocks via reconnection.

Place, publisher, year, edition, pages
2019. Vol. 46, no 3, p. 1177-1184
National Category
Geophysics Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-381842DOI: 10.1029/2018GL081804ISI: 000462072800007OAI: oai:DiVA.org:uu-381842DiVA, id: diva2:1305014
Available from: 2019-04-15 Created: 2019-04-15 Last updated: 2019-12-11Bibliographically approved

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Khotyaintsev, Yuri V.Lindqvist, P. A.

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Swedish Institute of Space Physics, Uppsala Division
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