Betatron Acceleration of Suprathermal Electrons within a Small-scale Flux Rope in the Solar Wind

• Published in: Astrophysical journal. Letters Vol. 957; no. 2; p. L14
• Main Authors: Meng, Weiduo, Guo, Jianpeng, Lin, Haibo, Fu, Huishan, Zhou, Meng, Zhao, Dan, Chen, Yan, He, Linxia, Wang, Xianghan, Wang, Zelin
• Format: Journal Article
• Language: English
• Published: Austin The American Astronomical Society 01.11.2023; IOP Publishing
• Subjects: Current sheets; Electric fields; Electrons; Heliospheric current sheet; In situ measurement; Interplanetary particle acceleration; Interplanetary physics; Solar wind

A growing body of evidence from observations, theories, and simulations indicates that particles can be effectively accelerated in solar wind regions filled with dynamic small-scale flux ropes (FRs). The main acceleration mechanisms identified in simulations include parallel electric field accelerat...