STATISTICAL STUDY OF FREE MAGNETIC ENERGY AND FLARE PRODUCTIVITY OF SOLAR ACTIVE REGIONS
文献类型：期刊论文
| 作者 | Su, J. T.1,2,3 ; Jing, J.1; Wang, S.1,2; Wiegelmann, T.4; Wang, H. M.1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-06-20 |
| 卷号 | 788期号:2 |
| 关键词 | Sun: activity Sun: flares Sun: magnetic fields |
| 英文摘要 | Photospheric vector magnetograms from the Helioseismic and Magnetic Imager on board the Solar Dynamic Observatory are utilized as the boundary conditions to extrapolate both nonlinear force-free and potential magnetic fields in solar corona. Based on the extrapolations, we are able to determine the free magnetic energy (FME) stored in active regions (ARs). Over 3000 vector magnetograms in 61 ARs were analyzed. We compare FME with the ARs' flare index (FI) and find that there is a weak correlation (< 60%) between FME and FI. FME shows slightly improved flare predictability relative to the total unsigned magnetic flux of ARs in the following two aspects: (1) the flare productivity predicted by FME is higher than that predicted by magnetic flux and (2) the correlation between FI and FME is higher than that between FI and magnetic flux. However, this improvement is not significant enough to make a substantial difference in time-accumulated FI, rather than individual flare, predictions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000337466200053 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6573]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.New Jersey Inst Technol, Space Weather Res Lab, Newark, NJ 07102 USA 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 3.Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China 4.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany |
| 推荐引用方式 GB/T 7714 | Su, J. T.,Jing, J.,Wang, S.,et al. STATISTICAL STUDY OF FREE MAGNETIC ENERGY AND FLARE PRODUCTIVITY OF SOLAR ACTIVE REGIONS[J]. ASTROPHYSICAL JOURNAL,2014,788(2). |
| APA | Su, J. T.,Jing, J.,Wang, S.,Wiegelmann, T.,&Wang, H. M..(2014).STATISTICAL STUDY OF FREE MAGNETIC ENERGY AND FLARE PRODUCTIVITY OF SOLAR ACTIVE REGIONS.ASTROPHYSICAL JOURNAL,788(2). |
| MLA | Su, J. T.,et al."STATISTICAL STUDY OF FREE MAGNETIC ENERGY AND FLARE PRODUCTIVITY OF SOLAR ACTIVE REGIONS".ASTROPHYSICAL JOURNAL 788.2(2014). |
入库方式： OAI收割
来源：国家天文台
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