Relationship between eruptions of active-region filaments and associated flares and coronal mass ejections
文献类型：期刊论文
| 作者 | Yan XL(闫晓理)1,2 ; Qu ZQ(屈中权)1; Kong, DF3
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2011-07 |
| 卷号 | 414期号:4页码:2803-2811 |
| ISSN号 | 0035-8711 |
| 关键词 | Sun: coronal mass ejections (CMEs) Sun: filaments Sun: flares prominences |
| 通讯作者 | Yan, XL (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | To better understand the dynamical process of active-region filament eruptions and associated flares and coronal mass ejections (CMEs), we carried out a statistical study of 120 events observed by Big Bear Solar Observatory (BBSO), Transition Region and Coronal Explorer (TRACE) and the Extreme-ultraviolet Imaging Telescope (EIT) on board Solar and Heliospheric Observatory (SOHO) from 1998 to 2007. We combined filament observations with the NOAA's flare reports, Michelson Doppler Imager (MDI) magnetograms and Large Angle and Spectrometric Coronagraph (LASCO) data, to investigate the relationship between active-region filament eruptions and other solar activities. We found that 115 out of 120 (about 96 per cent) filament eruptions are associated with flares. 56 out of 105 (about 53 per cent) filament eruptions are found to be associated with CMEs except for 15 events without corresponding LASCO data. We note the limitation of coronagraphs duo to geometry or sensitivity, leading to many smaller CMEs that are Earth-directed or well out of the plane of sky not being detected by near-Earth spacecraft. Excluding those without corresponding LASCO data, the CME association rate of active-region filament eruptions clearly increases with X-ray flare class from about 32 per cent for C-class flares to 100 per cent for X-class flares. We also found that the eruptions of active-region filaments associated with halo CMEs are often accompanied by large flares (18 out of 20 events; >= M1.0). About 92 per cent events (11 out of 12) associated with X-class flare are associated with halo CMEs. Such a result is due to the fact that the Earth-directed CMEs detected as halo CMEs are often the larger CMEs and many of the smaller ones are not detected because of the geometry and low intensity. The average speed of the associated CMEs of filament eruptions increases with X-ray flare size from 563.7 kms(-1) for C-class flares to 1506.6 kms(-1) for X-class flares. Excluding the active region located in the area more than 50. from the solar centre and five without corresponding MDI data, the beta magnetic field configuration (about 47 per cent; 36 out of 77) is more likely to form eruptive filaments than the other ones and there are 33 filament eruptions associated with magnetic flux cancellation, 42 events associated with magnetic flux emergence and two events without variation of magnetic field. The average area of emergence regions is 855.9 arcsec(2). These findings may be instructive not only in respect to the modelling of active-region filament eruptions but also in predicting flares and CMEs. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | KINK INSTABILITY ; MAGNETIC-FIELDS ; SOLAR-FLARES ; FLUX ROPES ; SOHO MISSION ; PROMINENCE ; EVOLUTION ; SIGMOIDS ; CONFIGURATIONS ; CATASTROPHE |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/414/4/2803 |
| 语种 | 英语 |
| WOS记录号 | WOS:000293178600003 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6177]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.Graduate School of Chinese Academy of Sciences, Zhongguancun, Beijing 100049, China 3.Jiaxing University, Jiaxing, Zhejiang 314001, China |
| 推荐引用方式 GB/T 7714 | Yan XL,Qu ZQ,Kong, DF. Relationship between eruptions of active-region filaments and associated flares and coronal mass ejections[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2011,414(4):2803-2811. |
| APA | Yan XL,Qu ZQ,&Kong, DF.(2011).Relationship between eruptions of active-region filaments and associated flares and coronal mass ejections.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,414(4),2803-2811. |
| MLA | Yan XL,et al."Relationship between eruptions of active-region filaments and associated flares and coronal mass ejections".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 414.4(2011):2803-2811. |
入库方式： OAI收割
来源：云南天文台
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