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Magnetic reconnection and modification of the Hall physics due to cold ions at the magnetopause

André, Mats (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
Li, Wenya (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
Toledo-Redondo, S. (author)
European Space Agcy ESAC, Madrid, Spain.
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Khotyaintsev, Yu. V. (author)
Vaivads, Andris (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
Graham, Daniel B. (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
Norgren, Cecilia (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Rymd- och plasmafysik
Burch, J. (author)
Southwest Res Inst, San Antonio, TX USA.
Lindqvist, Per-Arne (author)
KTH,Rymd- och plasmafysik,KTH, Stockholm, Sweden
Marklund, Göran (author)
KTH,Rymd- och plasmafysik,KTH, Stockholm, Sweden.
Ergun, R. (author)
Univ Colorado, LASP, Boulder, CO 80309 USA.
Torbert, R. (author)
Southwest Res Inst, San Antonio, TX USA.;Univ New Hampshire, Durham, NH 03824 USA.,Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90024 USA.
Magnes, W. (author)
Austrian Acad Sci, Space Res Inst, Graz, Austria.
Russell, C. T. (author)
Giles, B. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Moore, T. E. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Chandler, M. O. (author)
NASA, Marshall Space Flight Ctr, Huntsville, AL USA.
Pollock, C. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Young, D. T. (author)
Southwest Res Inst, San Antonio, TX USA.
Avanov, L. A. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Dorelli, J. C. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Gershman, D. J. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.;Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
Paterson, W. R. (author)
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
Lavraud, B. (author)
Univ Toulouse, Inst Rech Astrophys & Planetol, Toulouse, France.;CNRS, UMR 5277, Toulouse, France.
Saito, Y. (author)
Inst Space & Astronaut Sci, JAXA, Chofu, Tokyo, Japan.
Khotyaintsev, Yuri V. (author)
Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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 (creator_code:org_t)
Blackwell Publishing, 2016
2016
English.
In: Geophysical Research Letters. - : Blackwell Publishing. - 0094-8276 .- 1944-8007. ; 43:13, s. 6705-6712
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
https://urn.kb.se/re...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Observations by the four Magnetospheric Multiscale spacecraft are used to investigate the Hall physics of a magnetopause magnetic reconnection separatrix layer. Inside this layer of currents and strong normal electric fields, cold (eV) ions of ionospheric origin can remain frozen-in together with the electrons. The cold ions reduce the Hall current. Using a generalized Ohm's law, the electric field is balanced by the sum of the terms corresponding to the Hall current, the vxB drifting cold ions, and the divergence of the electron pressure tensor. A mixture of hot and cold ions is common at the subsolar magnetopause. A mixture of length scales caused by a mixture of ion temperatures has significant effects on the Hall physics of magnetic reconnection.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

magnetic reconnection
magnetopause
electric fields
Hall current

Publication and Content Type

ref (subject category)
art (subject category)

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