The Formation of a Bulge at the Front of Solar Coronal Mass Ejections
文献类型：期刊论文
| 作者 | He, Ziqian1; Song, Hongqiang1; Li, Leping2; Zhang, Qingmin3; Yan XL(闫晓理)4; Tan, Baolin2; Wang, Rui1; Wang, Bing1; Chen, Yao1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-05-20 |
| 卷号 | 1003期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae61aa |
| 产权排序 | 第4完成单位 |
| 文献子类 | Article |
| 英文摘要 | Coronal mass ejections (CMEs) are associated with eruptions of magnetic flux ropes (MFRs). Recent studies have proposed a new explanation on the nature of the three-part structure of CMEs, in which the front results from plasma pileup along the overlying coronal loops and should exhibit a smooth arc shape. However, it is not uncommon to observe a bulge at the CME front. The bulge can modify the shock geometry of CMEs, which plays a key role in the electron acceleration. Thus it is important to explore the formation of the bulge. In this paper, we investigate two CMEs observed face-on, both of which have a prominent bulge at the front. The first CME originates from the eruption of a north-south oriented prominence. During the eruption, the northern segment of the prominence rises significantly higher than the southern one due to the writhe of prominence/MFR. This produces a bulge at the northern front of the CME and is classified as an internal factor. The second CME originates from the eruption of a hot channel in a complex beta gamma-type active region. The channel lacks the obvious writhe during the eruption, while its overlying coronal loops have different projected heights prior to and during the eruption. This leads to a bulge at the front and is classified as an external factor. The formation of the bulge can be well understood with the new explanation of the three-part structure, which provides further support to the explanation. |
| 学科主题 | 天文学 ; 太阳与太阳系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | MAGNETIC-FLUX ROPE ; DIFFERENTIAL EMISSION MEASURE ; HOT-CHANNEL ; 3-PART STRUCTURE ; EARLY EVOLUTION ; DRIVEN ; CAVITY ; MODEL ; DEFLECTIONS ; DISTORTION |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[12373062] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001761237100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[12373062] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29187]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 通讯作者 | Song, Hongqiang |
| 作者单位 | 1.Shandong Key Laboratory of Space Environment and Exploration Technology, Institute of Space Sciences, School of Space Science and Technology, Shandong University, Weihai, Shandong 264209, People’s Republic of China; hqsong@sdu.edu.cn; 2.State Key Laboratory of Solar Activity and Space Weather, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China; 3.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, Jiangsu 210023, People’s Republic of China; 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650216, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | He, Ziqian,Song, Hongqiang,Li, Leping,et al. The Formation of a Bulge at the Front of Solar Coronal Mass Ejections[J]. ASTROPHYSICAL JOURNAL,2026,1003(1). |
| APA | He, Ziqian.,Song, Hongqiang.,Li, Leping.,Zhang, Qingmin.,闫晓理.,...&Chen, Yao.(2026).The Formation of a Bulge at the Front of Solar Coronal Mass Ejections.ASTROPHYSICAL JOURNAL,1003(1). |
| MLA | He, Ziqian,et al."The Formation of a Bulge at the Front of Solar Coronal Mass Ejections".ASTROPHYSICAL JOURNAL 1003.1(2026). |
入库方式： OAI收割
来源：云南天文台
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。