CORONAL BRIGHT POINTS ASSOCIATED WITH MINIFILAMENT ERUPTIONS
文献类型：期刊论文
| 作者 | Hong JC(洪俊超)1 ; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Bi Y(毕以)1; Li HD(李海东)1; Yang B(杨波)1,2; Yang D(杨丹)1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-12-01 |
| 卷号 | 796期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Sun: corona Sun: evolution Sun: filaments prominences |
| 通讯作者 | Hong, JC (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | Coronal bright points (CBPs) are small-scale, long-lived coronal brightenings that always correspond to photospheric network magnetic features of opposite polarity. In this paper, we subjectively adopt 30 CBPs in a coronal hole to study their eruptive behavior using data from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) on board the Solar DynamicsObservatory. About one-quarter to one-third of the CBPs in the coronal hole go through one or more minifilament eruption(s) (MFE(s)) throughout their lifetimes. The MFEs occur in temporal association with the brightness maxima of CBPs and possibly result from the convergence and cancellation of underlying magnetic dipoles. Two examples of CBPs with MFEs are analyzed in detail, where minifilaments appear as dark features of a cool channel that divide the CBPs along the neutral lines of the dipoles beneath. The MFEs show the typical rising movements of filaments and mass ejections with brightenings at CBPs, similar to large-scale filament eruptions. Via differential emission measure analysis, it is found that CBPs are heated dramatically by their MFEs and the ejected plasmas in the MFEs have average temperatures close to the pre-eruption BP plasmas and electron densities typically near 10(9) cm(-3). These new observational results indicate that CBPs are more complex in dynamical evolution and magnetic structure than previously thought. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIFFERENTIAL EMISSION MEASURE ; X-RAY JETS ; EPHEMERAL ACTIVE REGIONS ; H-ALPHA SURGES ; QUIET-SUN ; SOLAR CORONA ; MAGNETIC RECONNECTION ; FILAMENT ERUPTION ; KINK INSTABILITY ; MASS EJECTIONS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-637X/796/2/73/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000344878900003 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6239]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Graduate School of Chinese Academy of Sciences, Beijing, China |
| 推荐引用方式 GB/T 7714 | Hong JC,Jiang YC,Yang JY,et al. CORONAL BRIGHT POINTS ASSOCIATED WITH MINIFILAMENT ERUPTIONS[J]. ASTROPHYSICAL JOURNAL,2014,796(2). |
| APA | Hong JC.,Jiang YC.,Yang JY.,Bi Y.,Li HD.,...&Yang D.(2014).CORONAL BRIGHT POINTS ASSOCIATED WITH MINIFILAMENT ERUPTIONS.ASTROPHYSICAL JOURNAL,796(2). |
| MLA | Hong JC,et al."CORONAL BRIGHT POINTS ASSOCIATED WITH MINIFILAMENT ERUPTIONS".ASTROPHYSICAL JOURNAL 796.2(2014). |
入库方式： OAI收割
来源：云南天文台
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