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Reconnection along a Separator in Shock Turbulence

https://doi.org/10.3847/1538-4357/ad2204

Ng, J.; Bessho, N.; Dahlin, J. T.; Chen, L. -J. (February 2024, The Astrophysical Journal)

Abstract Numerous structures conducive to magnetic reconnection are frequently observed in the turbulent regions at quasi-parallel shocks. In this work, we use a particle-in-cell simulation to study 3D magnetic reconnection in shock turbulence. We identify and characterize magnetic null points, and focus on reconnection along the separator between them. We identify a reconnection region with strong parallel current, a finite parallel potential, and counterrotating electron flows. Electrons are shown to be accelerated by the parallel electric field before being scattered at the null.
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Advanced Methods for Analyzing in-Situ Observations of Magnetic Reconnection

https://doi.org/10.1007/s11214-024-01095-w

Hasegawa, H.; Argall, M_R; Aunai, N.; Bandyopadhyay, R.; Bessho, N.; Cohen, I_J; Denton, R_E; Dorelli, J_C; Egedal, J.; Fuselier, S_A; et al (September 2024, Space Science Reviews)

Abstract There is ample evidence for magnetic reconnection in the solar system, but it is a nontrivial task to visualize, to determine the proper approaches and frames to study, and in turn to elucidate the physical processes at work in reconnection regions from in-situ measurements of plasma particles and electromagnetic fields. Here an overview is given of a variety of single- and multi-spacecraft data analysis techniques that are key to revealing the context of in-situ observations of magnetic reconnection in space and for detecting and analyzing the diffusion regions where ions and/or electrons are demagnetized. We focus on recent advances in the era of the Magnetospheric Multiscale mission, which has made electron-scale, multi-point measurements of magnetic reconnection in and around Earth’s magnetosphere.
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Structures in the terms of the Vlasov equation observed at Earth’s magnetopause

https://doi.org/10.1038/s41567-021-01280-6

Shuster, J. R.; Gershman, D. J.; Dorelli, J. C.; Giles, B. L.; Wang, S.; Bessho, N.; Chen, L.-J.; Cassak, P. A.; Schwartz, S. J.; Denton, R. E.; et al (July 2021, Nature Physics)
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Lower-Hybrid Drift Waves Driving Electron Nongyrotropic Heating and Vortical Flows in a Magnetic Reconnection Layer

https://doi.org/10.1103/PhysRevLett.125.025103

Chen, L.-J.; Wang, S.; Le Contel, O.; Rager, A.; Hesse, M.; Drake, J.; Dorelli, J.; Ng, J.; Bessho, N.; Graham, D.; et al (July 2020, Physical Review Letters)
null (Ed.)
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