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Dynamics and waves near multiple magnetic null points in reconnection diffusion region
Deng, X. H.1,2; Zhou, M.1; Li, S. Y.1; Baumjohann, W.3; Andre, M.4; Cornilleau, N.5; Santolik, O.6; Pontin, D. I.7; Reme, H.8; Lucek, E.9; Fazakerley, A. N.10; Decreau, P.11; Daly, P.12; Nakamura, R.3; Tang, R. X.1; Hu, Y. H.1; Pang, Y.1; Buechner, J.12; Zhao, H.13; Vaivads, A.4; Pickett, J. S.14; Ng, C. S.15; Lin, X.1; Fu, S.1; Yuan, Z. G.1; Su, Z. W.1; Wang, J. F.1
2009-07-16
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
Volume114
AbstractIdentifying the magnetic structure in the region where the magnetic field lines break and how reconnection happens is crucial to improving our understanding of three-dimensional reconnection. Here we show the in situ observation of magnetic null structures in the diffusion region, the dynamics, and the associated waves. Possible spiral null pair has been identified near the diffusion region. There is a close relation among the null points, the bipolar signature of the Z component of the magnetic field, and enhancement of the flux of energetic electrons up to 100 keV. Near the null structures, whistler-mode waves were identified by both the polarity and the power law of the spectrum of electric and magnetic fields. It is found that the angle between the fans of the nulls is quite close to the theoretically estimated maximum value of the group-velocity cone angle for the whistler wave regime of reconnection.
DOI10.1029/2008JA013197
Indexed BySCI
Language英语
WOS IDWOS:000268095200001
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8348
Collection太阳物理研究部
Affiliation1.Wuhan Univ, Dept Space Phys, Wuhan 430072, Hubei, Peoples R China
2.Nanchang Univ, Inst Informat & Engn, Nanchang, Peoples R China
3.Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria
4.Swedish Inst Space Phys, Uppsala Div, S-75591 Uppsala, Sweden
5.Inst Pierre Simon Pl, Ctr Etud Environm Terr & Planetaires, F-78140 Velizy Villacoublay, France
6.Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic
7.Univ Dundee, Div Math, Dundee DD1 4HN, Scotland
8.CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse, France
9.Univ London Imperial Coll Sci Technol & Med, Space & Atmospher Phys Grp, Blackett Lab, London SW7 2BZ, England
10.UCL, Mullard Space Sci Lab, London, England
11.CNRS, Lab Phys & Chim Environm, F-45071 Orleans 2, France
12.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany
13.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
14.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA
15.Univ New Hampshire, Ctr Space Sci, Sci & Engn Res Ctr, Durham, NH 03824 USA
Recommended Citation
GB/T 7714
Deng, X. H.,Zhou, M.,Li, S. Y.,et al. Dynamics and waves near multiple magnetic null points in reconnection diffusion region[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2009,114.
APA Deng, X. H..,Zhou, M..,Li, S. Y..,Baumjohann, W..,Andre, M..,...&Wang, J. F..(2009).Dynamics and waves near multiple magnetic null points in reconnection diffusion region.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,114.
MLA Deng, X. H.,et al."Dynamics and waves near multiple magnetic null points in reconnection diffusion region".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 114(2009).
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