热门
Observations of the failed eruption of a filament
文献类型：期刊论文
| 作者 | Ji, HS ; Wang, HM; Schmahl, EJ; Moon, YJ; Jiang, YC
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2003-10-01 |
| 卷号 | 595期号:2页码:L135-L138 |
| 关键词 | MAGNETIC-FIELD EVOLUTION CORONAL MASS EJECTIONS SOLAR-FLARES TRANSITION REGION 2-RIBBON FLARES MODEL RECONNECTION EXPLORER RHESSI |
| ISSN号 | 0004-637X |
| 英文摘要 | We have observed the fine temporal and spatial structure of a filament eruption on 2002 May 27 following an M2-class flare. Our observations at Big Bear Solar Observatory were made at the wavelength of Halpha 1.3 Angstrom, with a cadence of 40 ms. The event was also observed by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) at X-ray energies from 3 to 50 keV and by the Transition Region and Coronal Explorer (TRACE) in poFe XII 195 Angstrom. The event appears to be a "failed eruption," as the filament material, seen in absorption by TRACE, first accelerated then decelerated as it approached its peak height of similar to8 x 10(4) km while the filament threads drained back to the Sun. The fact that the eruption did not lead to a coronal mass ejection indicates that the coronal magnetic field near similar to8 x 10(4) km did not open during the flare. The height-time curve obtained from the TRACE 195 Angstrom images during the deceleration phase shows that the deceleration of the filament exceeded the gravitational deceleration by more than a factor of 10, which suggests that the filament material was pulled back by magnetic tension. Also of importance are three sequential but cospatial features-brightenings in EUV, a loop-top hard X-ray emission, and "rupturing" of the Halpha filament-that point to a release of energy (and probably magnetic reconnection) above the initial filament's location but well below its terminal height. Reconnection above a filament does not appear in most models, with the notable exception of quadrupolar and "breakout" models. These observations provide evidence that at least two conditions are required for a successful eruption: a reconnection very low in the corona (possibly above the filament) and open or opening fields above that point. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MAGNETIC-FIELD EVOLUTION ; CORONAL MASS EJECTIONS ; SOLAR-FLARES ; TRANSITION REGION ; 2-RIBBON FLARES ; MODEL ; RECONNECTION ; EXPLORER ; RHESSI |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000185676000016 |
| 公开日期 | 2012-08-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4608]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.New Jersey Inst Technol, Big Bear Solar Observ, Big Bear City, CA 92314 USA 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 3.Univ Maryland, Dept Astron, College Pk, MD 20742 USA 4.Korean Astron Observ, Taejon 305348, South Korea |
| 推荐引用方式 GB/T 7714 | Ji, HS,Wang, HM,Schmahl, EJ,et al. Observations of the failed eruption of a filament[J]. ASTROPHYSICAL JOURNAL,2003,595(2):L135-L138. |
| APA | Ji, HS,Wang, HM,Schmahl, EJ,Moon, YJ,&Jiang, YC.(2003).Observations of the failed eruption of a filament.ASTROPHYSICAL JOURNAL,595(2),L135-L138. |
| MLA | Ji, HS,et al."Observations of the failed eruption of a filament".ASTROPHYSICAL JOURNAL 595.2(2003):L135-L138. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。