Evidence for an extended reconnection line at the dayside magnetopause
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概要
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We report in-situ detection by two spacecraft of oppositely directed jets of plasma emanating from a magnetic reconnection site at the Earth's dayside magnetopause, confirming a key element inherent in all reconnection scenarios. The dual-spacecraft (Equator-S and Geotail) observations at the flank magnetopause, together with SuperDARN Halley radar observations of the subsolar cusp region, reveal the presence of a rather stable and extended reconnection line which lies along the equatorial magnetopause. These observations were made under persistent southward interplanetary magnetic field (IMF) conditions, implying that under these conditions the reconnection sites are determined by the large-scale interactions between the solar wind magnetic field and the dayside magnetosphere, rather than by local conditions at the magnetopause. Control by local conditionswould result in patchy reconnection, distributed in a less well-organized fashion over the magnetopause surface.
- 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文
著者
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Bavassano-cattaneo M.
Ifsi-cnr
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KLECKER B.
Max-Planck-Institut fur extraterrestrische Physik
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HAERENDEL G.
Max-Planck-Institut fur extraterrestrische Physik
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PASCHMANN G.
Max-Planck-Institut fur extraterrestrische Physik
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BAUMJOHANN W.
Max-Planck-Institut fur extraterrestrische Physik
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CARLSON C.
Space Sciences Laboratory, University of California
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DILELLIS A.
IFSI-CNR
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FUJIMOTO M.
Department of Earth and Planetary Sciences, Tokyo Institute of Technology
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GEORGESCU E.
Max-Planck-Institut fur extraterrestrische Physik
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MUKAI T.
The Institute of Space and Astronautical Science
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PATERSON W.
Department of Physics and Astronomy, University of Iowa
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Reme H.
Centre D'etude Spatiale Des Rayonnements Universite Paul Sabatier
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Moebius E.
Space Science Center University Of New Hampshire
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Kistler L.
Space Science Center University Of New Hampshire
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Frank L.
Department Of Physics And Astronomy The University Of Iowa
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Sonnerup B.
Thayer School Of Engineering Dartmouth College
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Phan T.
Space Sciences Laboratory University Of California
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Carlson C.
Space Sciences Laboratory University Of California
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Freeman M.
British Antarctic Survey Cambridge
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Kokubun S.
Solar-terrestrial Environment Laboratory Nagoya University
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Fornacon K.-H.
Technische Universitat Braunschweig
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- Evidence for an extended reconnection line at the dayside magnetopause