Localized Oscillatory Energy Conversion in Magnetopause ReconnectionSouthwest Res Inst, San Antonio, TX 78238 USA.;Univ New Hampshire, Dept Phys, Durham, NH 03824 USA..
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA..
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA..
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.;Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA..
Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA..
Austrian Acad Sci, Space Res Inst, Graz, Austria..
Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA..
Univ Maryland, Dept Astron, College Pk, MD 20742 USA..
NASA, Goddard Space Flight Ctr, Greenbelt, MD USA..
Univ Paris Sud, Observ Paris, Lab Phys Plasmas, CNRS,Ecole Polytech,UPMC Univ Paris 06, Paris, France..
Univ Calif Los Angeles, Dept Earth & Planetary Sci, Los Angeles, CA USA..
Univ Calif Los Angeles, Dept Earth & Planetary Sci, Los Angeles, CA USA..
Swedish Inst Space Phys, Uppsala, Sweden..
Univ Bergen, Dept Phys & Technol, Bergen, Norway..
Univ Maryland, Dept Astron, College Pk, MD 20742 USA..
Univ Maryland, Dept Astron, College Pk, MD 20742 USA..
Univ Maryland, Dept Astron, College Pk, MD 20742 USA..
Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
Denali Sci, Healy, AK USA..
Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA..
Univ Colorado, LASP, Boulder, CO 80309 USA..
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2018 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 45, no 3, p. 1237-1245Article in journal (Refereed) Published
Abstract [en]
Data from the NASA Magnetospheric Multiscale mission are used to investigate asymmetric magnetic reconnection at the dayside boundary between the Earth's magnetosphere and the solar wind. High-resolution measurements of plasmas and fields are used to identify highly localized (similar to 15 electron Debye lengths) standing wave structures with large electric field amplitudes (up to 100 mV/m). These wave structures are associated with spatially oscillatory energy conversion, which appears as alternatingly positive and negative values of J . E. For small guide magnetic fields the wave structures occur in the electron stagnation region at the magnetosphere edge of the electron diffusion region. For larger guide fields the structures also occur near the reconnection X-line. This difference is explained in terms of channels for the out-of-plane current (agyrotropic electrons at the stagnation point and guide field-aligned electrons at the X-line).
Place, publisher, year, edition, pages
AMER GEOPHYSICAL UNION , 2018. Vol. 45, no 3, p. 1237-1245
Keywords [en]
reconnection, magnetopause, MMS
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-225305DOI: 10.1002/2017GL076809ISI: 000426161800005Scopus ID: 2-s2.0-85041711162OAI: oai:DiVA.org:kth-225305DiVA, id: diva2:1195250
Note
QC 20180404
2018-04-042018-04-042022-06-26Bibliographically approved