Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft. / Sergeev, V.; Semenov, V.; Kubyshkina, M.; Ivanova, V.; Baumjohann, W.; Nakamura, R.; Penz, T.; Runov, A.; Zhang, T. L.; Glassmeier, K. H.; Angelopoulos, V.; Frey, H.; Sauvaud, J. A.; Daly, P.; Cao, J. B.; Singer, H.; Lucek, E.
в: Geophysical Research Letters, Том 34, № 2, L02103, 28.01.2007.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Observation of repeated intense near-Earth reconnection on closed field lines with Cluster, Double Star, and other spacecraft
AU - Sergeev, V.
AU - Semenov, V.
AU - Kubyshkina, M.
AU - Ivanova, V.
AU - Baumjohann, W.
AU - Nakamura, R.
AU - Penz, T.
AU - Runov, A.
AU - Zhang, T. L.
AU - Glassmeier, K. H.
AU - Angelopoulos, V.
AU - Frey, H.
AU - Sauvaud, J. A.
AU - Daly, P.
AU - Cao, J. B.
AU - Singer, H.
AU - Lucek, E.
PY - 2007/1/28
Y1 - 2007/1/28
N2 - We report strong repeated magnetic reconnection pulses that occurred deep inside closed plasma sheet flux tubes at r ≤ 14Re. They have been observed with a fortuitous spacecraft constellation during three consecutive turbulent magnetic dipolarizations, accompanied by localized auroral brightenings near the equatorward edge of a wide auroral oval. The reconnection separatrix was mapped to ∼64° CGLat in the ionosphere, where a very energetic and narrow energy-dispersed ion injection with unusually steep dispersion slope was observed. Reconstruction of the reconnection rate from magnetic waveforms at Cluster provided a reconnection pulse duration (∼1 min) and peak strength (ER ∼ 8 mV/m) consistent with direct observations in the reconnection outflow region. The magnetic activity was rather weak, although the concurrent solar wind flow pressure was above the norm. We suggest that near-Earth reconnection events may be a phenomenon more frequent than generally thought. We also confirm that reconnection and the growth of strong turbulence in the near tail are strongly coupled together in near-Earth reconnection events.
AB - We report strong repeated magnetic reconnection pulses that occurred deep inside closed plasma sheet flux tubes at r ≤ 14Re. They have been observed with a fortuitous spacecraft constellation during three consecutive turbulent magnetic dipolarizations, accompanied by localized auroral brightenings near the equatorward edge of a wide auroral oval. The reconnection separatrix was mapped to ∼64° CGLat in the ionosphere, where a very energetic and narrow energy-dispersed ion injection with unusually steep dispersion slope was observed. Reconstruction of the reconnection rate from magnetic waveforms at Cluster provided a reconnection pulse duration (∼1 min) and peak strength (ER ∼ 8 mV/m) consistent with direct observations in the reconnection outflow region. The magnetic activity was rather weak, although the concurrent solar wind flow pressure was above the norm. We suggest that near-Earth reconnection events may be a phenomenon more frequent than generally thought. We also confirm that reconnection and the growth of strong turbulence in the near tail are strongly coupled together in near-Earth reconnection events.
UR - http://www.scopus.com/inward/record.url?scp=34548027504&partnerID=8YFLogxK
U2 - 10.1029/2006GL028452
DO - 10.1029/2006GL028452
M3 - Article
AN - SCOPUS:34548027504
VL - 34
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 2
M1 - L02103
ER -
ID: 18137491