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Direct observations of the magnetic reconnection site of an eruption on 2003 November 18
Lin, J1; Ko, YK1; Sui, L2; Raymond, JC1; Stenborg, GA2; Jiang YC(姜云春)3; Zhao, S3; Mancuso, S1,4; Lin, J (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
发表期刊ASTROPHYSICAL JOURNAL
2005-04-01
卷号622期号:2页码:1251-1264
DOI10.1086/428110
产权排序第3完成单位
收录类别SCI
关键词Sun : Coronal Mass Ejections (Cmes) Sun : Flares Sun : Magnetic Fields
摘要We report direct observations of the magnetic reconnection site during an eruptive process that occurred on 2003 November 18. The event started with a rapid expansion of a few magnetic arcades located over the east limb of the Sun and developed an energetic partial-halo coronal mass ejection (CME), a long current sheet, and a group of bright flare loops in the wake of the CME. It was observed by several instruments, both in space and on the ground, including the EUV Imaging Telescope, Ultraviolet Coronagraph Spectrometer, and Large Angle Spectrometric Coronagraph experiment on board the Solar and Heliospheric Observatory, the Reuven Ramaty High Energy Solar Spectroscopic Imager, and the Mauna Loa Solar Observatory Mark IV K-Coronameter. We combine the data from these instruments to investigate various properties of the eruptive process, including those around the current sheet. The maximum velocities of the CME leading edge and the core were 1939 and 1484 km s(-1), respectively. The average reconnection inflow velocities near the current sheet over different time intervals ranged from 10.5 to 106 km s(-1), and the average outflow velocities ranged from 460 to 1075 km s(-1). This leads to a corresponding rate of reconnection in terms of the Alfven Mach number MA ranging from 0.01 to 0.23. The composite of images from different instruments specifies explicitly how the different objects developed by a single eruptive process are related to one another.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
WOS记录号WOS:000228093400044
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTIONS ; CURRENT SHEET ; SOLAR-FLARES ; FLUX ROPES ; FIELD ; EVOLUTION ; RHESSI ; MOTION ; LOOPS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6076
专题太阳物理研究组
通讯作者Lin, J (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
作者单位1.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138
2.Department of Physics, Catholic University of America, 620 Michigan Avenue, Washington, DC 20064
3.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
4.Osservatorio Astronomico di Torino, INAF, 20 Strada Osservatorio, I-10025 Pino Torinese, Italy
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Lin, J,Ko, YK,Sui, L,et al. Direct observations of the magnetic reconnection site of an eruption on 2003 November 18[J]. ASTROPHYSICAL JOURNAL,2005,622(2):1251-1264.
APA Lin, J.,Ko, YK.,Sui, L.,Raymond, JC.,Stenborg, GA.,...&Lin, J .(2005).Direct observations of the magnetic reconnection site of an eruption on 2003 November 18.ASTROPHYSICAL JOURNAL,622(2),1251-1264.
MLA Lin, J,et al."Direct observations of the magnetic reconnection site of an eruption on 2003 November 18".ASTROPHYSICAL JOURNAL 622.2(2005):1251-1264.
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