| Автор | Zhang, Jun |
| Автор | Wang, Jingxiu |
| Автор | Nitta, Nariaki |
| Дата выпуска | 2001-02-01 |
| dc.description | 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<sup>−1</sup> 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. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | © 2001 IOP Publishing Ltd |
| Название | A Filament-Associated Halo Coronal Mass Ejection |
| Тип | paper |
| DOI | 10.1088/1009-9271/1/1/85 |
| Print ISSN | 1009-9271 |
| Журнал | Chinese Journal of Astronomy and Astrophysics |
| Том | 1 |
| Первая страница | 85 |
| Последняя страница | 98 |
| Аффилиация | Zhang, Jun; Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 |
| Аффилиация | Wang, Jingxiu; Beijing Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 |
| Аффилиация | Nitta, Nariaki; Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304, USA |
| Выпуск | 1 |
