| Kinematic characteristics of the surge on March 19, 1989 | |
| Gu XM(顾啸马); Lin J(林隽); Li KJ(李可军); Xuan JY(宣家余); Luan D(栾蒂); Li ZK(李治凯); GU, XM | |
| 发表期刊 | ASTRONOMY & ASTROPHYSICS
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| 1994-02 | |
| 卷号 | 282期号:1页码:240-251 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Sun Activity Sun Flares Surges |
| 摘要 | The H-alpha filtergrams, off-band images and H-alpha spectra of a surge and accompanying active objects were obtained at Yunnan Observatory on March 19,1989. Magnetograms of the corresponding super-active region were also obtained at Huairou-Beijing Observatory. The morphology and evolution of the surge and other active objects are considered based on the H-alpha filtergrams. The analysis of the H-alpha spectral profiles allows us to derive two-dimensional kinematic behaviours and velocity fields of the surge and other active objects. A two-cloud model and Beckers's one-cloud model are applied and discussed. The results show that the surge is present not only as an ascending movement with an average velocity V of about 70 kms(-1), but also a rotational motion with an average angular velocity omega of 1.5 x 10(-3) arc.s(-1). Both motions decrease with height above the solar limb. An expansion velocity of 25 kms(-1) is detected. The helical motion in the surge can be explained successfully by the theory of plasma double pole diffusion caused by a sharp density gradient between the surge and the surrounding corona. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-6361 |
| URL | 查看原文 |
| WOS记录号 | WOS:A1994MW31200032 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | HIGH-RESOLUTION PHOTOGRAPHY ; PHYSICAL PARAMETERS ; SOLAR CHROMOSPHERE ; DYNAMICS ; FILAMENT ; MODEL ; LOOPS ; FLARE |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6013 |
| 专题 | 太阳物理研究组 |
| 通讯作者 | GU, XM |
| 作者单位 | Yunnan Observatory, P.O.Box 110, Kunming, Yunnan 650011, P.R. China |
| 推荐引用方式 GB/T 7714 | Gu XM,Lin J,Li KJ,et al. Kinematic characteristics of the surge on March 19, 1989[J]. ASTRONOMY & ASTROPHYSICS,1994,282(1):240-251. |
| APA | Gu XM.,Lin J.,Li KJ.,Xuan JY.,Luan D.,...&GU, XM.(1994).Kinematic characteristics of the surge on March 19, 1989.ASTRONOMY & ASTROPHYSICS,282(1),240-251. |
| MLA | Gu XM,et al."Kinematic characteristics of the surge on March 19, 1989".ASTRONOMY & ASTROPHYSICS 282.1(1994):240-251. |
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| Kinematic characteri（2195KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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