A Filament-Associated Halo Coronal Mass Ejection
文献类型：期刊论文
| 作者 | Nariaki Nitta1; Zhang Jun2 ; Wang Jingxiu2
|
| 刊名 | Chinese Journal of Astronomy and Astrophysics
 |
| 出版日期 | 2001 |
| 卷号 | 1期号:1页码:85 |
| ISSN号 | 1009-9271 |
| 英文摘要 | There are only a few observations published so far that show the initiation of a coronal mass ejection (CME) and illustrate the magnetic changes in the surface origin of a CME. Any attempt to connect a CME with its local solar activities is meaningful. In this paper we present a clear instance of a halo CME initiation. A careful analysis of magnetograms shows that the only obvious magnetic changes in the surface region of the CME is a magnetic flux cancellation underneath a quiescent filament. The early disturbance was seen as the slow upward motion in segments of the quiescent filament. Four hours later, the filament was accelerated to about 50 km s(-1) and erupted. While a small part of the material in the filament was ejected into the upper corona, most of the mass was transported to a nearby region. About forty minutes later, the transported mass was also ejected partially to the upper corona. The eruption of the filament triggered a two-ribbon flare, with post-flare loops connecting the flare ribbons. A halo CME, which is inferred to be associated with the eruptive filament, was observed from LASCO/C2 and C3. The halo CME contained two CME events, each event corresponded to a partial mass ejection of the filament. We suggest that the magnetic reconnection at the lower atmosphere is responsible for the filament eruption and the halo CME. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37619]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Nariaki Nitta,Zhang Jun,Wang Jingxiu. A Filament-Associated Halo Coronal Mass Ejection[J]. Chinese Journal of Astronomy and Astrophysics,2001,1(1):85. |
| APA | Nariaki Nitta,Zhang Jun,&Wang Jingxiu.(2001).A Filament-Associated Halo Coronal Mass Ejection.Chinese Journal of Astronomy and Astrophysics,1(1),85. |
| MLA | Nariaki Nitta,et al."A Filament-Associated Halo Coronal Mass Ejection".Chinese Journal of Astronomy and Astrophysics 1.1(2001):85. |
入库方式： OAI收割
来源：国家天文台
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