Magnetic Field Configuration of a Quiescent Prominence Revealed by Large-amplitude Longitudinal Oscillations in End-view Observations
文献类型：期刊论文
| 作者 | Dai, Jun2,5; Asai, Ayumi5; Song, Dechao2; Qiu, Ye4; Xu Z(徐喆)1,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2025-12-10 |
| 卷号 | 995期号:1 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae18c5 |
| 产权排序 | 第4完成单位 |
| 文献子类 | Article |
| 英文摘要 | Prominence seismology, applied to large-amplitude longitudinal oscillations, is used to indirectly diagnose the geometry and strength of the magnetic fields inside the prominence. In this paper, combining imaging and spectroscopic data, the magnetic field configuration of a quiescent prominence is revealed by large-amplitude longitudinal oscillations observed in end view on 2023 December 4. In particular, the prominence oscillation involved blueshift velocities in Dopplergrams and horizontal motions in extreme-ultraviolet images. Originally, the prominence oscillation was triggered by the collision and heating of an adjoining hot structure associated with two coronal jets. The oscillation involved two groups of signals with similar oscillatory parameters, a three-dimensional (3D) initial amplitude of similar to 40 Mm and a 3D velocity amplitude of similar to 48 km s-1, both lasting for similar to 4 cycles with a period of similar to 77 minutes, with a phase difference of similar to pi/8. The angle between the 3D velocities and the prominence axis ranges from 10 degrees to 30 degrees. Two methods, utilizing time-distance diagrams and velocity fields, are employed to calculate the curvature radius of magnetic dips supporting the prominence materials. Both methods yield similar value ranges and trends from the bottom to the top of magnetic dips, with the curvature radius increasing from similar to 90 Mm to similar to 220 Mm, then decreasing to similar to 10 Mm, with transverse magnetic field strength >= 25 Gauss. From this, the realistic 3D geometry of the prominence magnetic dips is determined to be sinusoidal. To the best of our knowledge, we present the first accurate calculation of the 3D curvature radius and geometry of the prominence magnetic dips based on longitudinal oscillatory motions. |
| 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 | TRANSVERSE OSCILLATIONS ; H-ALPHA ; FILAMENT OSCILLATIONS ; ACTIVE-REGION ; MORETON WAVE ; EUV WAVE ; VERTICAL OSCILLATION ; SOLAR FILAMENTS ; VELOCITY-FIELDS ; PERIODIC MOTION |
| 资助项目 | JST divided by Natural Science Foundation of Jiangsu Province (Jiangsu Natural Science Foundation)[BK20241706]; China Postdoctoral Science Foundation ((sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic))[2023M733734]; MOST divided by National Natural Science Foundation of China (NSFC)[12403064] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001634254700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | JST divided by Natural Science Foundation of Jiangsu Province (Jiangsu Natural Science Foundation)[BK20241706] ; China Postdoctoral Science Foundation ((sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic))[2023M733734] ; MOST divided by National Natural Science Foundation of China (NSFC)[12403064] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28778]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 通讯作者 | Dai, Jun |
| 作者单位 | 1.Yunnan Key Laboratory of Solar Physics and Space Science, 396 Yangfangwang, Guandu District, Kunming 650216, People’s Republic of China 2.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210023, People’s Republic of China; daijun@pmo.ac.cn; 3.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, People’s Republic of China; 4.Institute of Science and Technology for Deep Space Exploration, Suzhou Campus, Nanjing University, Suzhou 215163, People’s Republic of China; 5.Astronomical Observatory, Kyoto University, Sakyo, Kyoto, Japan; |
| 推荐引用方式 GB/T 7714 | Dai, Jun,Asai, Ayumi,Song, Dechao,et al. Magnetic Field Configuration of a Quiescent Prominence Revealed by Large-amplitude Longitudinal Oscillations in End-view Observations[J]. ASTROPHYSICAL JOURNAL,2025,995(1). |
| APA | Dai, Jun,Asai, Ayumi,Song, Dechao,Qiu, Ye,&徐喆.(2025).Magnetic Field Configuration of a Quiescent Prominence Revealed by Large-amplitude Longitudinal Oscillations in End-view Observations.ASTROPHYSICAL JOURNAL,995(1). |
| MLA | Dai, Jun,et al."Magnetic Field Configuration of a Quiescent Prominence Revealed by Large-amplitude Longitudinal Oscillations in End-view Observations".ASTROPHYSICAL JOURNAL 995.1(2025). |
入库方式： OAI收割
来源：云南天文台
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