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DOI | 10.1029/2019GL084137 |
MMS Observations of Multiscale Hall Physics in the Magnetotail | |
Alm, Love1; Andre, Mats1; Graham, Daniel B.1; Khotvaintsev, Yuri, V1; Vaivads, Andris2; Chappell, Charles R.3; Dargent, Jeremy4; Fuselier, Stephen A.5,6; Haaland, Stein7,8; Lavraud, Benoit9; Li, Wenya10; Tenfjord, Paul8; Toledo-Redondo, Sergio9; Vines, Sarah K.11 | |
2019-09-05 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Sweden; USA; Italy; Germany; Norway; France; Peoples R China |
英文摘要 | We present Magnetospheric Multiscale mission (MMS) observations of Hall physics in the magnetotail, which compared to dayside Hall physics is a relatively unexplored topic. The plasma consists of electrons, moderately cold ions (T similar to 1.5 keV) and hot ions (T similar to 20 keV). MMS can differentiate between the cold ion demagnetization region and hot ion demagnetization regions, which suggests that MMS was observing multiscale Hall physics. The observed Hall electric field is compared with a generalized Ohm's law, accounting for multiple ion populations. The cold ion population, despite its relatively high initial temperature, has a significant impact on the Hall electric field. These results show that multiscale Hall physics is relevant over a much larger temperature range than previously observed and is relevant for the whole magnetosphere as well as for other astrophysical plasma. |
英文关键词 | cold ions Hall physics reconnection multiscale MMS magnetotail |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000485377500001 |
WOS关键词 | MAGNETIC RECONNECTION ; INSTRUMENT ; MOTION |
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/186937 |
专题 | 气候变化 |
作者单位 | 1.Swedish Inst Space Phys, Uppsala, Sweden; 2.KTH Royal Inst Technol, Stockholm, Sweden; 3.Vanderbilt Univ, Dept Phys & Astron, Vanderbilt Dyer Observ, Nashville, TN 37235 USA; 4.Univ Pisa, Phys Dept Enrico Fermi, Pisa, Italy; 5.Southwest Res Inst, San Antonio, TX USA; 6.Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA; 7.Max Planck Inst Solar Syst Res, Gottingen, Germany; 8.Univ Bergen, Birkeland Ctr Space Sci, Bergen, Norway; 9.Univ Toulouse, Inst Rech Astrophys & Planetol, CNRS, UPS,CNES, Toulouse, France; 10.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China; 11.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA |
推荐引用方式 GB/T 7714 | Alm, Love,Andre, Mats,Graham, Daniel B.,et al. MMS Observations of Multiscale Hall Physics in the Magnetotail[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Alm, Love.,Andre, Mats.,Graham, Daniel B..,Khotvaintsev, Yuri, V.,Vaivads, Andris.,...&Vines, Sarah K..(2019).MMS Observations of Multiscale Hall Physics in the Magnetotail.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Alm, Love,et al."MMS Observations of Multiscale Hall Physics in the Magnetotail".GEOPHYSICAL RESEARCH LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
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