MORPHOLOGICAL EVOLUTION OF A THREE-DIMENSIONAL CORONAL MASS EJECTION CLOUD RECONSTRUCTED FROM THREE VIEWPOINTS
文献类型：期刊论文
| 作者 | Feng, L.1,2 ; Inhester, B.2; Wei, Y.2; Gan, W. Q.1; Zhang, T. L.3; Wang, M. Y.4
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2012-05-20 |
| 卷号 | 751期号:1页码:18(12pp) |
| ISSN号 | 0004-637X |
| 关键词 | Sun: corona Sun: coronal mass ejections (CMEs) |
| 英文摘要 | The propagation properties of coronal mass ejections (CMEs) are crucial to predict its geomagnetic effect. A newly developed three-dimensional (3D) mask fitting reconstruction method using coronagraph images from three viewpoints has been described and applied to the CME ejected on 2010 August 7. The CME's 3D localization, real shape, and morphological evolution are presented. Due to its interaction with the ambient solar wind, the morphology of this CME changed significantly in the early phase of evolution. Two hours after its initiation, it was expanding almost self-similarly. The CME's 3D localization is quite helpful to link remote sensing observations to in situ measurements. The investigated CME was propagating to Venus with its flank just touching STEREO B. Its corresponding interplanetary CME in the interplanetary space shows a possible signature of a magnetic cloud with a preceding shock in Venus Express (VEX) observations, while from STEREO B only a shock is observed. We have calculated three principal axes for the reconstructed 3D CME cloud. The orientation of the major axis is, in general, consistent with the orientation of a filament (polarity inversion line) observed by SDO/AIA and SDO/HMI. The flux rope axis derived by the Minimal Variance Analysis from VEX indicates a radial-directed axis orientation. It might be that locally only the leg of the flux rope passed through VEX. The height and speed profiles from the Sun to Venus are obtained. We find that the CME speed possibly had been adjusted to the speed of the ambient solar wind flow after leaving the COR2 field of view and before arriving at Venus. A southward deflection of the CME from the source region is found from the trajectory of the CME geometric center. We attribute it to the influence of the coronal hole where the fast solar wind emanated from. |
| 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] | IN-SITU OBSERVATIONS ; MAGNETIC-FIELD ; STEREOSCOPIC ANALYSIS ; 1 AU ; DYNAMICS ; IMAGES ; SUN ; PROPAGATION ; ENVIRONMENT ; KINEMATICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000303814600018 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8034]  |
| 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.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China 2.Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany 3.Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria 4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, L.,Inhester, B.,Wei, Y.,et al. MORPHOLOGICAL EVOLUTION OF A THREE-DIMENSIONAL CORONAL MASS EJECTION CLOUD RECONSTRUCTED FROM THREE VIEWPOINTS[J]. ASTROPHYSICAL JOURNAL,2012,751(1):18(12pp). |
| APA | Feng, L.,Inhester, B.,Wei, Y.,Gan, W. Q.,Zhang, T. L.,&Wang, M. Y..(2012).MORPHOLOGICAL EVOLUTION OF A THREE-DIMENSIONAL CORONAL MASS EJECTION CLOUD RECONSTRUCTED FROM THREE VIEWPOINTS.ASTROPHYSICAL JOURNAL,751(1),18(12pp). |
| MLA | Feng, L.,et al."MORPHOLOGICAL EVOLUTION OF A THREE-DIMENSIONAL CORONAL MASS EJECTION CLOUD RECONSTRUCTED FROM THREE VIEWPOINTS".ASTROPHYSICAL JOURNAL 751.1(2012):18(12pp). |
入库方式： OAI收割
来源：紫金山天文台
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。