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Coronal mass ejections and the associated activities on the solar disk observed on October 26, 2003
Bao, X1; Zhang, H1; Lin J(林隽)2,3; Stenborg, GA4; Bao, X (reprint author), Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China.
发表期刊ASTRONOMY & ASTROPHYSICS
2007-02
卷号463期号:1页码:321-331
DOI10.1051/0004-6361:20065471
产权排序第2完成单位
收录类别SCI ; EI
关键词Sun : Coronal Mass Ejections Sun : Filaments Sun : Flares Sun : Activity
摘要Aims: Coronal mass ejections (CMEs) are usually considered fast (slow) if their velocities are greater (less) than 500 kms(-1). It is generally believed that fast CMEs are well associated with activity manifested on the solar disk, such as solar flares, and that slow CMEs are often associated with filament eruptions out of active regions and can hardly leave any signature on the solar disk. However, this may not be totally true for the cases we are studying in the present work, where we have explored more explicitly than in previous studies the relationship between different types of CMEs and the associated on-disk activities. Methods: We analyzed four CMEs that happen to take of near the west limb of the Sun on October 26, 2003. Their maximum speeds varied from 300 to 1800 km s(-1), with average accelerations from about 6 ms(-2) up to 330 ms(-2). They span over almost the full range of speeds of typical CMEs, from slow to fast. The evolution and kinematical properties of each CME at their early stages as well as the corresponding processes on the solar disk are examined. Results: Three out of the four events analyzed, including slow and fast ones, exhibited apparent acceleration during their early development and a likely association with solar disk activity as manifested by ribbon flares and post-event loops. The fourth event (the CME that did not show any clear association with solar disk activity) was not the slowest one: it had a median speed (<= 400 km s(-1)). This suggests that some existing conclusions about the CME-flare correlation need to be re-investigated. In addition, the correlation of the coronal mass ejection angular widths to their speeds is also discussed.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
URL查看原文
WOS记录号WOS:000243941900031
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]SMM OBSERVATIONS ; FLARES ; TRANSIENTS ; ERUPTIONS ; LASCO ; SOHO
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6109
专题太阳物理研究组
通讯作者Bao, X (reprint author), Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China.
作者单位1.National Astronomical Observatories of China, Chinese Academy of Sciences, Beijing 100012, PR China
2.Yunnan Astronomical Observatory, National Astronomical Observatories of China, Chinese Academy of Sciences, Kunming, Yunnan 650011, PR China
3.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
4.Department of Physics, Catholic University of America, 620 Michigan Avenue, Washington, DC 20064, USA
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Bao, X,Zhang, H,Lin J,et al. Coronal mass ejections and the associated activities on the solar disk observed on October 26, 2003[J]. ASTRONOMY & ASTROPHYSICS,2007,463(1):321-331.
APA Bao, X,Zhang, H,Lin J,Stenborg, GA,&Bao, X .(2007).Coronal mass ejections and the associated activities on the solar disk observed on October 26, 2003.ASTRONOMY & ASTROPHYSICS,463(1),321-331.
MLA Bao, X,et al."Coronal mass ejections and the associated activities on the solar disk observed on October 26, 2003".ASTRONOMY & ASTROPHYSICS 463.1(2007):321-331.
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