MMS observations of oblique small-scale magnetopause flux ropes near the ion diffusion region during weak guide-field reconnection

2017 ◽  
Vol 44 (13) ◽  
pp. 6517-6524 ◽  
Author(s):  
W.-L. Teh ◽  
R. E. Denton ◽  
B. U. Ö. Sonnerup ◽  
C. Pollock
Keyword(s):  
Small Scale ◽  
Diffusion Region ◽  
Ion Diffusion ◽  
Guide Field ◽  
Flux Ropes

EDR signatures observed by MMS : a statistical study of dayside events found with machine learning

2021 ◽  
Author(s):  
Quentin Lenouvel ◽  
Vincent Génot ◽  
Philippe Garnier ◽  
Benoit Lavraud ◽  
Sergio Toledo
Keyword(s):  
Machine Learning ◽  
Statistical Study ◽  
Learning Algorithm ◽  
Small Scale ◽  
Diffusion Region ◽  
Machine Learning Algorithm ◽  
Physical Processes ◽  
The Core ◽  
Machine Learning Methods ◽  
Guide Field

<p>The understanding of magnetic reconnection's physical processes has considerably been improved thanks to the data of the Magnetopsheric Multiscale mission (MMS). However, a lot of work still has to be done to better characterize the core of the reconnection process : the electron diffusion region (EDR). We previously developed a machine learning algorithm to automatically detect EDR candidates, in order to increase the available list of events identified in the literature. However, identifying the parameters that are the most relevant to describe EDRs is complex, all the more that some of the small scale plasma/fields parameters show limitations in some configurations such as for low particle densities or large guide fields cases. In this study, we perform a statistical study of previously reported dayside EDRs as well as newly reported EDR candidates found using machine learning methods. We also show different single and multi-spacecraft parameters that can be used to better identify dayside EDRs in time series from MMS data recorded at the magnetopause. And finally we show an analysis of the link between the guide field and the strength of the energy conversion around each EDR.</p>

scholarly journals Coalescence of magnetic flux ropes in the ion diffusion region of magnetic reconnection

2015 ◽  
Vol 12 (3) ◽  
pp. 263-267 ◽  
Author(s):  
Rongsheng Wang ◽  
Quanming Lu ◽  
Rumi Nakamura ◽  
Can Huang ◽  
Aimin Du ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Magnetic Reconnection ◽  
Diffusion Region ◽  
Ion Diffusion ◽  
Magnetic Flux Ropes ◽  
Flux Ropes

scholarly journals First in situ evidence of electron pitch angle scattering due to magnetic field line curvature in the Ion diffusion region

2016 ◽  
Vol 121 (5) ◽  
pp. 4103-4110 ◽  
Author(s):  
Y. C. Zhang ◽  
C. Shen ◽  
A. Marchaudon ◽  
Z. J. Rong ◽  
B. Lavraud ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Magnetic Field Line ◽  
Pitch Angle ◽  
Diffusion Region ◽  
Ion Diffusion ◽  
Angle Scattering

scholarly journals Investigating 1st and 2nd order Fermi acceleration of energetic particles by small-scale magnetic flux ropes at 1AU

2020 ◽  
Vol 1620 ◽  
pp. 012008
Author(s):  
J A le Roux ◽  
G M Webb ◽  
O V Khabarova ◽  
K T Van Eck ◽  
L-L Zhao ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Energetic Particles ◽  
Small Scale ◽  
Fermi Acceleration ◽  
Magnetic Flux Ropes ◽  
Flux Ropes
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