YNAO OpenIR  > 太阳物理研究组
RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE
Zhong, J. Y.1,2,3; Lin J(林隽)4; Li, Y. T.3,5; Wang, X.7; Li Y(李燕)4; Zhang, K.1; Yuan, D. W.1; Ping, Y. L.1; Wei, H. G.1; Wang, J. Q.8; Su, L. N.5; Li, F.5; Han, B.1; Liao, G. Q.5; Yin, C. L.5; Fang, Y.3,9; Yuan, X.3,9; Wang, C.10; Sun, J. R.10; Liang, G. Y.1; Wang, F. L.1; Ding, Y. K.3,11; He, X. T.3,12,13; Zhu, J. Q.3,14; Sheng, Z. M.3,6,9; Li, G.15; Zhao, G.1; Zhang, J.3,9; Zhong, JY
发表期刊ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2016-08-01
卷号225期号:2
DOI10.3847/0067-0049/225/2/30
产权排序第4完成单位
收录类别SCI
关键词Acceleration Of Particles Magnetic Reconnection Magnetic Fields Plasmas
摘要Laboratory experiments have been carried out to model the magnetic reconnection process in a solar flare with powerful lasers. Relativistic electrons with energy up to megaelectronvolts. are detected along the magnetic separatrices bounding the reconnection outflow, which exhibit a kappa-like distribution with an effective temperature of similar to 10(9) K. The acceleration of non-thermal electrons is found to be. more efficient in the case with a guide magnetic field (a component of a. magnetic field along the reconnection-induced electric field) than. in the case without a guide field. Hardening of the spectrum at energies >= 500 keV is observed in both cases, which remarkably resembles the hardening. of hard X-ray and gamma-ray spectra observed in many solar flares. This supports a recent proposal that the hardening in the hard X-ray and gamma-ray emissions of solar flares is due to a hardening of the source-electron spectrum. We also performed numerical simulations that help examine behaviors of electrons in the reconnection process with the electromagnetic field configurations occurring in the experiments. The trajectories of non-thermal electrons observed in the experiments were well duplicated in the simulations. Our numerical simulations generally reproduce the electron energy spectrum as well, except for. the hardening of the electron spectrum. This suggests that other mechanisms such as shock or turbulence may play an important role in the production. of the observed energetic electrons.
项目资助者973 Program Grant(2013CBA01503) ; NSFC(11273033, 11205015, 11135012, 11220101002, 10821061, 11273055, 11333007) ; CAS grant(XDB09040202) ; Beijing Nova Program Grant(Z131109000413050)
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0067-0049
URL查看原文
WOS记录号WOS:000382309500013
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]UNDERSTANDING PARTICLE-ACCELERATION ; GENERATED MAGNETIC-FIELDS ; RAY-IMAGING SPECTROSCOPY ; CURRENT SHEETS ; NUMERICAL EXPERIMENTS ; ENERGETIC PARTICLES ; PHYSICAL-PROPERTIES ; KAPPA-DISTRIBUTION ; 2-RIBBON FLARES ; COSMIC-RAYS
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9718
专题太阳物理研究组
通讯作者Zhong, JY
作者单位1.Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
2.Department of Astronomy, Beijing Normal University, Beijing 100875, China
3.Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
4.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650216, China
5.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
6.Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, UK
7.Department of Physics, Harbin Institute of Technology, Harbin 150001, China
8.College of Physical Science and Technology, Sichuan University, Chengdu 610065, China
9.Key Laboratory for Laser Plasmas (MoE) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
10.Shanghai Institute of Laser Plasma, Shanghai 201800, China
11.Research Center for Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
12.Center for Applied Physics and Technology, and HEDPS, Peking University, Beijing 100871, China
13.Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
14.National Laboratory on High Power Lasers and Physics, Shanghai 201800, China
15.Department of Space Science and CSPAR, University of Alabama in Huntsville, Huntsville, AL 35899, USA
推荐引用方式
GB/T 7714
Zhong, J. Y.,Lin J,Li, Y. T.,et al. RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2016,225(2).
APA Zhong, J. Y..,Lin J.,Li, Y. T..,Wang, X..,Li Y.,...&Zhong, JY.(2016).RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,225(2).
MLA Zhong, J. Y.,et al."RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 225.2(2016).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
RELATIVISTIC ELECTRO(2938KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhong, J. Y.]的文章
[Lin J(林隽)]的文章
[Li, Y. T.]的文章
百度学术
百度学术中相似的文章
[Zhong, J. Y.]的文章
[Lin J(林隽)]的文章
[Li, Y. T.]的文章
必应学术
必应学术中相似的文章
[Zhong, J. Y.]的文章
[Lin J(林隽)]的文章
[Li, Y. T.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: RELATIVISTIC ELECTRONS PRODUCED BY RECONNECTING ELECTRIC FIELDS IN A LASER-DRIVEN BENCH-TOP SOLAR FLARE.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。