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DOI | 10.1029/2018GL080994 |
Reconnection With Magnetic Flux Pileup at the Interface of Converging Jets at the Magnetopause | |
Oieroset, M.1; Phan, T. D.1; Drake, J. F.2,3; Eastwood, J. P.4; Fuselier, S. A.5,6; Strangeway, R. J.7; Haggerty, C.8; Shay, M. A.8; Oka, M.1; Wang, S.9,10; Chen, L-J9,10; Kacem, I11; Lavraud, B.11; Angelopoulos, V7; Burch, J. L.5; Torbert, R. B.12; Ergun, R. E.13; Khotyaintsev, Y.14; Lindqvist, P. A.15; Gershman, D. J.9; Giles, B. L.9; Pollock, C.16; Moore, T. E.9; Russell, C. T.7; Saito, Y.17; Avanov, L. A.9,10; Paterson, W.9 | |
2019-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:4页码:1937-1946 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England; France; Sweden; Japan |
英文摘要 | We report Magnetospheric Multiscale observations of reconnection in a thin current sheet at the interface of interlinked flux tubes carried by converging reconnection jets at Earth's magnetopause. The ion skin depth-scale width of the interface current sheet and the non-frozen-in ions indicate that Magnetospheric Multiscale crossed the reconnection layer near the X-line, through the ion diffusion region. Significant pileup of the reconnecting component of the magnetic field in this and three other events on approach to the interface current sheet was accompanied by an increase in magnetic shear and decrease in , leading to conditions favorable for reconnection at the interface current sheet. The pileup also led to enhanced available magnetic energy per particle and strong electron heating. The observations shed light on the evolution and energy release in 3-D systems with multiple reconnection sites. Plain Language Summary The Earth and the solar wind magnetic fields interconnect through a process called magnetic reconnection. The newly reconnected magnetic field lines are strongly bent and accelerate particles, similar to a rubber band in a slingshot. In this paper we have used observations from NASA's Magnetospheric MultiScale spacecraft to investigate what happens when two of these slingshot-like magnetic field lines move toward each other and get tangled up. We found that the two bent magnetic field lines tend to orient themselves perpendicular to each other as they become interlinked and stretched, similar to what rubber bands would do. This reorientation allows the interlinked magnetic fields to reconnect again, releasing part of the built-up magnetic energy as strong electron heating. The results are important because they show how interlinked magnetic fields, which occur in many solar and astrophysics contexts, reconnect and produce enhanced electron heating, something that was not understood before. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461855600006 |
WOS关键词 | MMS OBSERVATIONS ; SHEAR EVIDENCE ; PLASMA BETA ; DEPENDENCE ; FIELD ; TOPOLOGY |
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/25547 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA; 2.Univ Maryland, Dept Phys, College Pk, MD 20742 USA; 3.Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA; 4.Imperial Coll London, Blackett Lab, London, England; 5.Southwest Res Inst, San Antonio, TX USA; 6.Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA; 7.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 8.Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA; 9.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 10.Univ Maryland, Dept Astron, College Pk, MD 20742 USA; 11.Univ Toulouse, CNES, UPS, CNRS,Inst Rech Astrophys & Planetol, Toulouse, France; 12.Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA; 13.Univ Colorado, LASP, Boulder, CO 80309 USA; 14.Swedish Inst Space Phys, Uppsala, Sweden; 15.Royal Inst Technol, Stockholm, Sweden; 16.Denali Sci, Healy, AK USA; 17.ISAS JAXA, Sagamihara, Kanagawa, Japan |
推荐引用方式 GB/T 7714 | Oieroset, M.,Phan, T. D.,Drake, J. F.,et al. Reconnection With Magnetic Flux Pileup at the Interface of Converging Jets at the Magnetopause[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(4):1937-1946. |
APA | Oieroset, M..,Phan, T. D..,Drake, J. F..,Eastwood, J. P..,Fuselier, S. A..,...&Paterson, W..(2019).Reconnection With Magnetic Flux Pileup at the Interface of Converging Jets at the Magnetopause.GEOPHYSICAL RESEARCH LETTERS,46(4),1937-1946. |
MLA | Oieroset, M.,et al."Reconnection With Magnetic Flux Pileup at the Interface of Converging Jets at the Magnetopause".GEOPHYSICAL RESEARCH LETTERS 46.4(2019):1937-1946. |
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