Magnetic non-potentiality on the quiet Sun and the filigree
文献类型：期刊论文
| 作者 | Zhao, Meng ; Wang, Jing-Xiu; Jin, Chun-Lan; Zhou, Gui-Ping
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 9期号:8页码:933-944 |
| 关键词 | Sun: magnetic fields Sun: photosphere Sun: network bright point |
| 英文摘要 | From the observed vector magnetic fields by the Solar Optical Telescope/Spectro-Polari meter aboard the satellite Hinode, we have examined whether or not the quiet Sun magnetic fields are non-potential, and how the G-band filigrees and Ca II network bright points (NBPs) are associated with the magnetic non-potentiality. A sizable quiet region in the disk center is selected for this study. The new findings by the study are as follows. (1) The magnetic fields of the quiet region are obviously non-potential. The region-average shear angle is 40 degrees, the average vertical current is 0.016 A m(-2), and the average free magnetic energy density, 2.7 x 10(2) erg cm(-3). The magnitude of these non-potential quantities is comparable to that in solar active regions. (2) There are overall correlations among current helicity, free magnetic energy and longitudinal fields. The magnetic non-potentiatity is mostly concentrated in the close vicinity of network elements which have stronger longitudinal fields. (3) The filigrees and NBPs are magnetically characterized by strong longitudinal fields, large electric helicity, and high free energy density. Because the selected region is away from any enhanced network, these new results can generally be applied to the quiet Sun. The findings imply that stronger network elements play a role in high magnetic non-potentiality in heating the solar atmosphere and in conducting the solar wind. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269166200009 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7613]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Key Lab Solar Activ, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Meng,Wang, Jing-Xiu,Jin, Chun-Lan,et al. Magnetic non-potentiality on the quiet Sun and the filigree[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(8):933-944. |
| APA | Zhao, Meng,Wang, Jing-Xiu,Jin, Chun-Lan,&Zhou, Gui-Ping.(2009).Magnetic non-potentiality on the quiet Sun and the filigree.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(8),933-944. |
| MLA | Zhao, Meng,et al."Magnetic non-potentiality on the quiet Sun and the filigree".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.8(2009):933-944. |
入库方式： OAI收割
来源：国家天文台
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。