The Electron Acoustic Wave and Its Role in Solar Flaring Loops Heating
文献类型：期刊论文
| 作者 | Chen,L.1,2; Wu,D. J.1; Xiang,L.3,4; Shi,C.1; Ma,B.5,6; Tang,J. F.7; Huang,J.2 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 904期号:2 |
| 关键词 | Solar flares Plasma astrophysics Solar coronal waves |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abc00b |
| 英文摘要 | Abstract From soft X-ray emission, the solar flare temperatures are from several MK to dozens of times MK, which are higher than the preflare coronal temperatures. A combination of several heating mechanisms may contribute to the heating problem in solar flare loops. In this paper, we propose an important mechanism of solar flaring loops heating, in which the excited electron acoustic wave (EAW) by flare-accelerated fast electron beams can lead to electron heating via collisionless Landau damping effect produced by wave–particle resonant interaction. Taking account of the return-current effect of fast electron beams, by use of numerical and analytic solutions, the plasma wave instability driven by fast electron beams is investigated in typical solar flare loop plasma parameters. The results show that the EAW is the strongest unstable wave mode rather than other wave modes. The dissipation of EAW via collisionless Landau damping and its application to solar flaring loops heating are discussed in detail. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-904-2-ABC00B |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/61135]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Chen,L. |
| 作者单位 | 1.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210034, People’s Republic of China clvslc214@pmo.ac.cn, djwu@pmo.ac.cn, shichen0923@163.com 2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People’s Republic of China; huangj@bao.ac.cn 3.Key Laboratory of Low Dimensional Quantum Structures and Quantum Control, Hunan Normal University, Changsha 410081, People’s Republic of China 4.School of Physics and Electronics, Hunan Normal University, Changsha 410081, People’s Republic of China; xiangliang@pmo.ac.cn 5.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China 6.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China; bingma@pmo.ac.cn 7.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, People’s Republic of China; jftang@xao.ac.cn |
| 推荐引用方式 GB/T 7714 | Chen,L.,Wu,D. J.,Xiang,L.,et al. The Electron Acoustic Wave and Its Role in Solar Flaring Loops Heating[J]. The Astrophysical Journal,2020,904(2). |
| APA | Chen,L..,Wu,D. J..,Xiang,L..,Shi,C..,Ma,B..,...&Huang,J..(2020).The Electron Acoustic Wave and Its Role in Solar Flaring Loops Heating.The Astrophysical Journal,904(2). |
| MLA | Chen,L.,et al."The Electron Acoustic Wave and Its Role in Solar Flaring Loops Heating".The Astrophysical Journal 904.2(2020). |
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来源：国家天文台
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