STEREOSCOPIC POLAR PLUME RECONSTRUCTIONS FROM STEREO/SECCHI IMAGES
文献类型：期刊论文
| 作者 | Feng, L.1,2 ; Inhester, B.1; Solanki, S. K.1; Wilhelm, K.1; Wiegelmann, T.1; Podlipnik, B.1; Howard, R. A.3; Plunkett, S. P.3; Wuelser, J. P.4; Gan, W. Q.2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2009-07-20 |
| 卷号 | 700期号:1页码:292-301 |
| 关键词 | methods: data analysis solar wind Sun: corona Sun: magnetic fields techniques: image processing |
| ISSN号 | 0004-637X |
| 英文摘要 | We present stereoscopic reconstructions of the location and inclination of polar plumes of two data sets based on the two simultaneously recorded images taken by the EUVI telescopes in the SECCHI instrument package onboard the Solar TErrestrial RElations Observatory spacecraft. The 10 plumes investigated show a superradial expansion in the coronal hole in three dimensions (3D) which is consistent with the two-dimensional results. Their deviations from the local meridian planes are rather small with an average of 6 degrees..47. By comparing the reconstructed plumes with a dipole field with its axis along the solar rotation axis, it is found that plumes are inclined more horizontally than the dipole field. The lower the latitude is, the larger is the deviation from the dipole field. The relationship between plumes and bright points has been investigated and they are not always associated. For the first data set, based on the 3D height of plumes and the electron density derived from SUMER/SOHO Si VIII line pair, we found that electron densities along the plumes decrease with height above the solar surface. The temperature obtained from the density scale height is 1.6-1.8 times larger than the temperature obtained from Mg IX line ratios. We attribute this discrepancy to a deviation of the electron and the ion temperatures. Finally, we have found that the outflow speeds studied in the O VI line in the plumes corrected by the angle between the line of sight and the plume orientation are quite small with amaximum of 10 km s(-1). It is unlikely that plumes are a dominant contributor to the fast solar wind. |
| 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] | FAST SOLAR-WIND ; CORONAL PLUMES ; MAGNETIC STEREOSCOPY ; PHYSICAL-PROPERTIES ; NETWORK ACTIVITY ; SPACECRAFT ; SECCHI ; MODEL ; HOLES ; LOOPS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267768900026 |
| 公开日期 | 2011-12-08 |
| 源URL | [http://159.226.72.40/handle/332002/1503]  |
| 专题 | 紫金山天文台_太阳高能及相关物理过程研究团组 |
| 作者单位 | 1.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.USN, Res Lab, Washington, DC 20375 USA 4.Lockheed Martin ATC, Solar & Astrophys Lab, Palo Alto, CA 94304 USA |
| 推荐引用方式 GB/T 7714 | Feng, L.,Inhester, B.,Solanki, S. K.,et al. STEREOSCOPIC POLAR PLUME RECONSTRUCTIONS FROM STEREO/SECCHI IMAGES[J]. ASTROPHYSICAL JOURNAL,2009,700(1):292-301. |
| APA | Feng, L..,Inhester, B..,Solanki, S. K..,Wilhelm, K..,Wiegelmann, T..,...&Gan, W. Q..(2009).STEREOSCOPIC POLAR PLUME RECONSTRUCTIONS FROM STEREO/SECCHI IMAGES.ASTROPHYSICAL JOURNAL,700(1),292-301. |
| MLA | Feng, L.,et al."STEREOSCOPIC POLAR PLUME RECONSTRUCTIONS FROM STEREO/SECCHI IMAGES".ASTROPHYSICAL JOURNAL 700.1(2009):292-301. |
入库方式： OAI收割
来源：紫金山天文台
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