| Moreton wave and its source of disturbances in the X12/3B WLF of AR6659 in 1991 June 4 | |
Zhang H(张衡)1,2 ; Zhang, H (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
| |
| 发表期刊 | ASTRONOMY & ASTROPHYSICS
 |
| 2001-06 | |
| 卷号 | 372期号:2页码:676-685 |
| DOI | 10.1051/0004-6361:20010379 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | Sun : Flares Sun : Magnetic Fields Sun : Chromosphere |
| 摘要 | The Moreton wave that accompanied the X12/3B June 4 1991 white light are (WLF) is analyzed. The wave, with a wavelength of 1.4 x 10(4) km, propagated along the solar limb on the chromosphere, and the wavefronts were accelerated during the propagation: their velocity increased from 2500 km s(-1) to 4000 km s(-1). The analyses show that the wave originated in the layers of the atmosphere between the photosphere and the upper chromosphere, and it is suggested that both a magneto-hydrodynamic (MHD) disturbance and a gasdynamic disturbance are coupled to induce the wave. The MHD disturbance is caused by a rapid variation of the magnetic field, which merges and alternatively emerges. A gas-dynamic disturbance is produced by a strong downward compression of the deep chromosphere and a spray upward ejection occurring simultaneously in the disturbance source region. In the disturbance source, the increase in the magnetic pressure is responsible for the wave acceleration. The photospheric (longitudinal) magnetic field of the source emerges continually during the wavefront propagation, and the corresponding magnetic pressure also increases. The wavefronts that are carried by the plasma around the disturbance source are accelerated, since the transverse pressure compresses the plasma. The observed results do not support the hypothesis that the Moreton wave is the "sweeping skirt" of the shock wavefront, as proposed by Uchida (1974). |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-6361 |
| URL | 查看原文 |
| 归档日期 | 2001-07-11 |
| WOS记录号 | WOS:000169963800040 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | WHITE-LIGHT FLARES ; SOLAR-FLARE ; YOHKOH |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4126 |
| 专题 | 其他 |
| 通讯作者 | Zhang, H (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 作者单位 | 1.Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, PR China 2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, PR China |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Zhang H,Zhang, H . Moreton wave and its source of disturbances in the X12/3B WLF of AR6659 in 1991 June 4[J]. ASTRONOMY & ASTROPHYSICS,2001,372(2):676-685. |
| APA | Zhang H,&Zhang, H .(2001).Moreton wave and its source of disturbances in the X12/3B WLF of AR6659 in 1991 June 4.ASTRONOMY & ASTROPHYSICS,372(2),676-685. |
| MLA | Zhang H,et al."Moreton wave and its source of disturbances in the X12/3B WLF of AR6659 in 1991 June 4".ASTRONOMY & ASTROPHYSICS 372.2(2001):676-685. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Moreton wave and its（604KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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。
修改评论