Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085080 |
Electron Acceleration in a Magnetotail Reconnection Outflow Region Using Magnetospheric MultiScale Data | |
Eriksson, Elin1,2; Vaivads, Andris1,3; Alm, Love1; Graham, Daniel B.1; Khotyaintsev, Yuri, V1; Andre, Mats1 | |
2020-01-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden |
英文摘要 | We study Magnetospheric MultiScale observations in the outflow region of magnetotail reconnection. We estimate the power density converted via the three fundamental electron acceleration mechanisms: Fermi, betatron, and parallel electric fields. The dominant mechanism, both on average and the peak values, is Fermi acceleration with a peak power density of about +200 pW/m(3). The magnetic field curvature during the most intense Fermi acceleration is comparable to the electron gyroradius, consistent with efficient electron scattering. The peak power densities due to the betatron acceleration are a factor of 3 lower than that for the Fermi acceleration, the average betatron acceleration is close to zero and slightly negative. The contribution from parallel electric fields is significantly smaller than those from the Fermi and betatron acceleration. However, the observational uncertainties in the parallel electric field measurement prevent further conclusions. There is a strong variation in the power density on a characteristic ion time scale. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000513983400005 |
WOS关键词 | MAGNETIC RECONNECTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279534 |
专题 | 气候变化 |
作者单位 | 1.Swedish Inst Space Phys, Uppsala, Sweden; 2.Uppsala Univ, Dept Phys & Astron, Space & Plasma Phys, Uppsala, Sweden; 3.KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Space & Plasma Phys, Stockholm, Sweden |
推荐引用方式 GB/T 7714 | Eriksson, Elin,Vaivads, Andris,Alm, Love,et al. Electron Acceleration in a Magnetotail Reconnection Outflow Region Using Magnetospheric MultiScale Data[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(1). |
APA | Eriksson, Elin,Vaivads, Andris,Alm, Love,Graham, Daniel B.,Khotyaintsev, Yuri, V,&Andre, Mats.(2020).Electron Acceleration in a Magnetotail Reconnection Outflow Region Using Magnetospheric MultiScale Data.GEOPHYSICAL RESEARCH LETTERS,47(1). |
MLA | Eriksson, Elin,et al."Electron Acceleration in a Magnetotail Reconnection Outflow Region Using Magnetospheric MultiScale Data".GEOPHYSICAL RESEARCH LETTERS 47.1(2020). |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论