Evolution of electric currents associated with two M-class flares
文献类型：期刊论文
| 作者 | Tan, Baolin; Ji, Haisheng ; Huang, Guangli; Zhou, Tuanhui; Song, Qiwu; Huang, Yu
|
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 239期号:1-2页码:137-148 |
| 关键词 | EMERGING FLUX REGION MAGNETIC-FIELDS ACTIVE REGIONS SOLAR-FLARES MORPHOLOGY AMBIGUITY |
| ISSN号 | 0038-0938 |
| 英文摘要 | Using one-minute cadence vector magnetograms from Big Bear Solar Observatory (BBSO), we analyze the temporal behavior of derived longitudinal electric currents associated with two flares on July 26, 2002. One of the events is an M1.0 flare which occurred in active region NOAA 10044, while the other is an M8.7 flare in the adjacent region 10039. Rapid changes of magnetic fields in the form of flux emergence are found to be associated with both of these events. However, the temporal behavior of electric currents are very different. For the M1.0 flare, the longitudinal electric current density drops rapidly near the flaring neutral line; while for the M8.7 flare, the current density rapidly increases, confirming the picture of the current-carrying flux emergence. We offer a possible explanation for such a difference: magnetic reconnection at different heights for the two events, near the photosphere for the M1.0 flare, and higher up for the M8.7 flare. |
| 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] | EMERGING FLUX REGION ; MAGNETIC-FIELDS ; ACTIVE REGIONS ; SOLAR-FLARES ; MORPHOLOGY ; AMBIGUITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242706500007 |
| 公开日期 | 2012-02-07 |
| 源URL | [http://159.226.72.40/handle/332002/3494]  |
| 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.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Baolin,Ji, Haisheng,Huang, Guangli,et al. Evolution of electric currents associated with two M-class flares[J]. SOLAR PHYSICS,2006,239(1-2):137-148. |
| APA | Tan, Baolin,Ji, Haisheng,Huang, Guangli,Zhou, Tuanhui,Song, Qiwu,&Huang, Yu.(2006).Evolution of electric currents associated with two M-class flares.SOLAR PHYSICS,239(1-2),137-148. |
| MLA | Tan, Baolin,et al."Evolution of electric currents associated with two M-class flares".SOLAR PHYSICS 239.1-2(2006):137-148. |
入库方式： OAI收割
来源：紫金山天文台
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