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Statistics of Recon...
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Gingell, I.Imperial Coll London, Blackett Lab, London, England.;Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.
(author)
Statistics of Reconnecting Current Sheets in the Transition Region of Earth's Bow Shock
- Article/chapterEnglish2020
Publisher, publication year, extent ...
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AMER GEOPHYSICAL UNION,2020
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LIBRIS-ID:oai:DiVA.org:kth-278119
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278119URI
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https://doi.org/10.1029/2019JA027119DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414325URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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QC 20200721
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We have conducted a comprehensive survey of burst mode observations of Earth's bow shock by the Magnetospheric Multiscale mission to identify and characterize current sheets associated with collisionless shocks, with a focus on those containing fast electron outflows, a likely signature of magnetic reconnection. The survey demonstrates that these thin current sheets are observed within the transition region of approximately 40% of shocks within the burst mode data set of Magnetospheric Multiscale. With only small apparent bias toward quasi-parallel shock orientations and high Alfven Mach numbers, the results suggest that reconnection at shocks is a universal process, occurring across all shock orientations and Mach numbers. On examining the distributions of current sheet properties, we find no correlation between distance from the shock, sheet width, or electron jet speed, though the relationship between electron and ion jet speed supports expectations of electron-only reconnection in the region. Furthermore, we find that robust heating statistics are not separable from background fluctuations, and thus, the primary consequence of reconnection at shocks is in relaxing the topology of the disordered magnetic field in the transition region.
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Schwartz, S. J.Imperial Coll London, Blackett Lab, London, England.;Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA.
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Eastwood, J. P.Imperial Coll London, Blackett Lab, London, England.
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Stawarz, J. E.Imperial Coll London, Blackett Lab, London, England.
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Burch, J. L.Southwest Res Inst, San Antonio, TX USA.,Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS,CNES, Toulouse, France.
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Ergun, R. E.Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA.
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Fuselier, S. A.Southwest Res Inst, San Antonio, TX USA.
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Gershman, D. J.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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Giles, B. L.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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Khotyaintsev, Yuri V.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)ykh28990
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Lavraud, B.Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS,CNES, Toulouse, France.
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Lindqvist, Per-ArneSwedish Institute of Space Physics (Uppsala)(Swepub:kth)u1yukyk9
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Paterson, W. R.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
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Phan, T. D.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
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Russell, C. T.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA.
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Strangeway, R. J.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA.
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Torbert, R. B.Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
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Wilder, F.Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA.
(author)
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Imperial Coll London, Blackett Lab, London, England.;Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.Imperial Coll London, Blackett Lab, London, England.;Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA.
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In:Journal of Geophysical Research - Space Physics: AMER GEOPHYSICAL UNION125:12169-93802169-9402
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Gingell, I.
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Schwartz, S. J.
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Eastwood, J. P.
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Stawarz, J. E.
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Burch, J. L.
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Ergun, R. E.
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Fuselier, S. A.
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Gershman, D. J.
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Giles, B. L.
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Khotyaintsev, Yu ...
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Lavraud, B.
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Lindqvist, Per-A ...
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Paterson, W. R.
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Phan, T. D.
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Russell, C. T.
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Strangeway, R. J ...
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Torbert, R. B.
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Wilder, F.
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Royal Institute of Technology
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Uppsala University