KMS of Xinjiang Astronomical Observatory, CAS
| Ion Acoustic Shock Wave Formation and Ion Acceleration in the Interactions of Pair Jets with Electron–ion Plasmas | |
Huang,Jian1,2; Weng,Su-Ming1,2; Wang,Xin3 ; Zhong,Jia-Yong4; Zhu,Xing-Long1,2,5; Li,Xiao-Feng1,2; Chen,Min1,2; Murakami,Masakatsu6; Sheng,Zheng-Ming1,2,5,7
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| 2022-05-01 | |
| Source Publication | The Astrophysical Journal
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| ISSN | 0004-637X |
| Volume | 931Issue:1 |
| Abstract | Abstract Astrophysical jets are ubiquitous in the universe and often associated with compact objects, and their interactions with the ambient medium not only dissipate their own energy but also provide ideal circumstances for particle acceleration. By means of theoretical analysis and particle-in-cell simulations, here we study the ion acoustic shock wave (IASW) formation and consequent ion acceleration when electron–positron (e ? e +) jets are injected into ambient electron–ion plasmas. It is found that the Buneman instability can be excited first, which induces the formation of an ion acoustic wave (IAW). As the amplitude of the IAW increases, its waveform is steepened and subsequently an IASW is formed. Some ions in the ambient plasmas will be reflected when they encounter the IASW, and thus can be accelerated to form an energetic ion beam. For an initial e ? e + jet with the Lorentz factor γ 0 = 100 and the ion–electron mass ratio m i /m e = 1836, the ions can be accelerated up to 580 MeV. This study deepens our understanding of the fireball model of gamma-ray bursts, the shock model of pulsar wind nebulae, the origin of cosmic rays, and other related astrophysical processes. |
| Corresponding Author | Weng,Su-Ming() |
| DOI | 10.3847/1538-4357/ac66e1 |
| Language | 英语 |
| WOS ID | IOP:apj_931_1_36 |
| Publisher | The American Astronomical Society |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6139 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Weng,Su-Ming |
| Affiliation | 1.Key Laboratory for Laser Plasmas (MoE), School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China wengsuming@sjtu.edu.cn 2.Collaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China; zmsheng@sjtu.edu.cn 3.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, People's Republic of China 4.Department of Astronomy, Beijing Normal University, Beijing 100875, People's Republic of China 5.Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China 6.Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan 7.SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK |
| Recommended Citation GB/T 7714 | Huang,Jian,Weng,Su-Ming,Wang,Xin,等. Ion Acoustic Shock Wave Formation and Ion Acceleration in the Interactions of Pair Jets with Electron–ion Plasmas[J]. The Astrophysical Journal,2022,931(1). |
| APA | Huang,Jian.,Weng,Su-Ming.,Wang,Xin.,Zhong,Jia-Yong.,Zhu,Xing-Long.,...&Sheng,Zheng-Ming.(2022).Ion Acoustic Shock Wave Formation and Ion Acceleration in the Interactions of Pair Jets with Electron–ion Plasmas.The Astrophysical Journal,931(1). |
| MLA | Huang,Jian,et al."Ion Acoustic Shock Wave Formation and Ion Acceleration in the Interactions of Pair Jets with Electron–ion Plasmas".The Astrophysical Journal 931.1(2022). |
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