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DOI | 10.1029/2019GL085359 |
Collisionless Magnetic Reconnection in an Asymmetric Oxygen Density Configuration | |
Kolsto, Hakon Midthun1; Hesse, Michael1,2; Norgren, Cecilia1; Tenfjord, Paul1; Spinnangr, Susanne Flo1; Kwagala, Norah1 | |
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 | Norway; USA |
英文摘要 | Combined with the magnetic field, the distribution of charged particles in the inflow region is expected to control the rate of magnetic reconnection. This paper investigates how the reconnection process is altered by a cold, asymmetrically distributed, oxygen population, which is initially located away from the current layer in the inflow regions. A particle-in-cell simulation is used to gain further insight into the dynamics of the system. The time evolution of the reconnection process proceeds rapidly compared to the cyclotron period of O+. Therefore, the oxygen remains, to a good approximation, demagnetized. Thus, Alfven scaling is not an adequate description of the reconnection rate. A scaling relation for the reconnection rate for an asymmetrically distributed, demagnetized species has been developed. Additionally, we find that an asymmetric density configuration leads to a distinct motion of the reconnection site and generates an asymmetry of the diffusion region and the Hall electric field. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000513983400004 |
WOS关键词 | CURRENT SHEET ; PLASMA ; ACCELERATION ; MAGNETOTAIL ; FIELD ; TAIL ; IONS |
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/279517 |
专题 | 气候变化 |
作者单位 | 1.Univ Bergen, Space Plasma Phys Grp, Bergen, Norway; 2.Southwest Res Inst, San Antonio, TX USA |
推荐引用方式 GB/T 7714 | Kolsto, Hakon Midthun,Hesse, Michael,Norgren, Cecilia,et al. Collisionless Magnetic Reconnection in an Asymmetric Oxygen Density Configuration[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(1). |
APA | Kolsto, Hakon Midthun,Hesse, Michael,Norgren, Cecilia,Tenfjord, Paul,Spinnangr, Susanne Flo,&Kwagala, Norah.(2020).Collisionless Magnetic Reconnection in an Asymmetric Oxygen Density Configuration.GEOPHYSICAL RESEARCH LETTERS,47(1). |
MLA | Kolsto, Hakon Midthun,et al."Collisionless Magnetic Reconnection in an Asymmetric Oxygen Density Configuration".GEOPHYSICAL RESEARCH LETTERS 47.1(2020). |
条目包含的文件 | 条目无相关文件。 |
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