Detecting the Oscillation and Propagation of the Nascent Dynamic Solar Wind Structure at 2.6 Solar Radii Using Very Long Baseline Interferometry Radio Telescopes
文献类型：期刊论文
| 作者 | Ma, Maoli17,18; Calves, Guifre Molera16; Cimo, Giuseppe15; Xiong, Ming14; Li, Peijia18; Kong, Jing13; Zhang, Peijin12; He, Jiansen11; Liu, Lijia10; Kummamuru, Pradyumna16 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 940期号:2页码:10 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ac96e7 |
| 通讯作者 | Ma, Maoli(mamaoli@shao.ac.cn) |
| 英文摘要 | Probing the solar corona is crucial to study the coronal heating and solar wind acceleration. However, the transient and inhomogeneous solar wind flows carry large-amplitude inherent Alfven waves and turbulence, which make detection more difficult. We report the oscillation and propagation of the solar wind at 2.6 solar radii (Rs) by observation of China's Tianwen and ESA's Mars Express with radio telescopes. The observations were carried out on 2021 October 9, when one coronal mass ejection (CME) passed across the ray paths of the telescope beams. We obtain the frequency fluctuations (FFs) of the spacecraft signals from each individual telescope. First, we visually identify the drift of the frequency spikes at a high spatial resolution of thousands of kilometers along the projected baselines. They are used as traces to estimate the solar wind velocity. Then we perform the cross-correlation analysis on the time series of FF from different telescopes. The velocity variations of solar wind structure along radial and tangential directions during the CME passage are obtained. The oscillation of tangential velocity confirms the detection of a streamer wave. Moreover, at the tail of the CME, we detect the propagation of an accelerating fast field-aligned density structure indicating the presence of magnetohydrodynamic waves. This study confirms that the ground-station pairs are able to form particular spatial projection baselines with high resolution and sensitivity to study the detailed propagation of the nascent dynamic solar wind structure. |
| WOS关键词 | SOUNDING EXPERIMENTS ; MARS ; EXPRESS ; MISSION |
| 资助项目 | National Natural Science Foundation of China[U1831137] ; National Natural Science Foundation of China[41874205] ; National Natural Science Foundation of China[U1931135] ; National Natural Science Foundation of China[11703070] ; National Basic Science Data Center VLBI Radio Astronomy and Deep Space Exploration DataBase'[NBSDC-DB-11] ; NSFC[41874200] ; NSFC[42174194] ; NSFC[42150105] ; National Key R&D Program of China[2021YFA0718600] ; Beijing Aerospace Control Center[E267141001] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000890358500001 |
| 资助机构 | National Natural Science Foundation of China ; National Basic Science Data Center VLBI Radio Astronomy and Deep Space Exploration DataBase' ; NSFC ; National Key R&D Program of China ; Beijing Aerospace Control Center |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4977]  |
| 专题 | 25米望远镜运行组 |
| 通讯作者 | Ma, Maoli |
| 作者单位 | 1.Chinese Acad Sci, Kunming Astron Observ, 150 Sci 1-St, Yunnan, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1-St, Urumqi, Peoples R China 3.Ist Radioastron, Ist Radioastron Via P Gobetti 101, Bologna I-40129, Italy 4.Tech Univ Munich, Geodet Observat Wettzel, Geodet Observ Wettzell Sackenrieder Str 25, D-93444 Munich, Germany 5.Russian Acad Sci, Inst Appl Astron, Kutuzova Embankment 10, St. Petersburg 191187, Russia 6.Ctr Desarrollos Tecnol, Observ Yebes, Guadalajara, Spain 7.Hartebeesthoek Radio Astron Observ, POB 443, Krugersdorp, South Africa 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.Natl Basic Sci Data Ctr, Bldg 2, 4, Zhongguancun South 4th St, Beijing 100190, Peoples R China 10.Chinese Acad Sci, Natl Astron Observ, People's Republ China, 20A Datun Rd, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Maoli,Calves, Guifre Molera,Cimo, Giuseppe,et al. Detecting the Oscillation and Propagation of the Nascent Dynamic Solar Wind Structure at 2.6 Solar Radii Using Very Long Baseline Interferometry Radio Telescopes[J]. ASTROPHYSICAL JOURNAL LETTERS,2022,940(2):10. |
| APA | Ma, Maoli.,Calves, Guifre Molera.,Cimo, Giuseppe.,Xiong, Ming.,Li, Peijia.,...&Hao, Longfei.(2022).Detecting the Oscillation and Propagation of the Nascent Dynamic Solar Wind Structure at 2.6 Solar Radii Using Very Long Baseline Interferometry Radio Telescopes.ASTROPHYSICAL JOURNAL LETTERS,940(2),10. |
| MLA | Ma, Maoli,et al."Detecting the Oscillation and Propagation of the Nascent Dynamic Solar Wind Structure at 2.6 Solar Radii Using Very Long Baseline Interferometry Radio Telescopes".ASTROPHYSICAL JOURNAL LETTERS 940.2(2022):10. |
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