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Magnetic Reconnecti...
Magnetic Reconnection in Three Dimensions : Modeling and Analysis of Electromagnetic Drift Waves in the Adjacent Current Sheet
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- Ergun, R. E. (author)
- Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA;Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Hoilijoki, S. (author)
- Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Ahmadi, N. (author)
- Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Schwartz, S. J. (author)
- Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Wilder, F. D. (author)
- Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Drake, J. F. (author)
- Univ Maryland, Dept Astron, College Pk, MD 20742 USA
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- Hesse, M. (author)
- Univ Bergen, Birkeland Ctr Space Sci, Bergen, Norway
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- Shay, M. A. (author)
- Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
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- Ji, H. (author)
- Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA;Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA
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- Yamada, M. (author)
- Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA
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- Graham, Daniel B. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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- Cassak, P. A. (author)
- West Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA
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- Swisdak, M. (author)
- Univ Maryland, Dept Astron, College Pk, MD 20742 USA
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- Burch, J. L. (author)
- Southwest Res Inst, San Antonio, TX USA
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- Torbert, R. B. (author)
- Southwest Res Inst, San Antonio, TX USA;Univ New Hampshire, Dept Phys, Durham, NH 03824 USA
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- Holmes, J. C. (author)
- Austrian Acad Sci, Space Res Inst, Graz, Austria
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- Stawarz, J. E. (author)
- Imperial Coll London, Blackett Lab, London, England
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- Goodrich, K. A. (author)
- Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
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- Eriksson, S. (author)
- Univ Colorado, Lab Atmospher & Space Sci, Boulder, CO 80309 USA
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- Strangeway, R. J. (author)
- Univ Calif Los Angeles, IGGP, Los Angeles, CA USA
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- LeContel, O. (author)
- Lab Phys Plasmas, Palaiseau, France
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(creator_code:org_t)
- AMER GEOPHYSICAL UNION, 2019
- 2019
- English.
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In: Journal of Geophysical Research - Space Physics. - : AMER GEOPHYSICAL UNION. - 2169-9380 .- 2169-9402. ; 124:12, s. 10085-10103
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- We present a model of electromagnetic drift waves in the current sheet adjacent to magnetic reconnection at the subsolar magnetopause. These drift waves are potentially important in governing 3-D structure of subsolar magnetic reconnection and in generating turbulence. The drift waves propagate nearly parallel to the X line and are confined to a thin current sheet. The scale size normal to the current sheet is significantly less than the ion gyroradius and can be less than or on the order of the wavelength. The waves also have a limited extent along the magnetic field (B), making them a three-dimensional eigenmode structure. In the current sheet, the background magnitudes of B and plasma density change significantly, calling for a treatment that incorporates an inhomogeneous plasma environment. Using detailed examination of Magnetospheric Multiscale observations, we find that the waves are best represented by series of electron vortices, superimposed on a primary electron drift, that propagate along the current sheet (parallel to the X line). The waves displace or corrugate the current sheet, which also potentially displaces the electron diffusion region. The model is based on fluid behavior of electrons, but ion motion must be treated kinetically. The strong electron drift along the X line is likely responsible for wave growth, similar to a lower hybrid drift instability. Contrary to a classical lower hybrid drift instability, however, the strong changes in the background B and n(o), the normal confinement to the current sheet, and the confinement along B are critical to the wave description.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ergun, R. E.
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Hoilijoki, S.
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Ahmadi, N.
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Schwartz, S. J.
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Wilder, F. D.
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Drake, J. F.
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show more...
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Hesse, M.
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Shay, M. A.
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Ji, H.
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Yamada, M.
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Graham, Daniel B ...
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Cassak, P. A.
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Swisdak, M.
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Burch, J. L.
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Torbert, R. B.
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Holmes, J. C.
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Stawarz, J. E.
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Goodrich, K. A.
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Eriksson, S.
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Strangeway, R. J ...
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LeContel, O.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geophysics
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Uppsala University