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Preferential Heating of Protons over Alpha Particles near Turbulent Coherent Structures: Parker Solar Probe Observations

  • Authors: Jiayang Xi, Tieyan Wang, Daniel Verscharen, Yan Yang, Luca Sorriso-Valvo, Xinyi Wang, Wenhao Chen, Zuzheng Chen, Zeren Zhima, Chao Xiao, Xiangcheng Dong, Jin Liu, Xiang Li, Guoqi Liu, Naifei Gou, Xiaoxiao Qin, Malcolm Dunlop, Jinbin Cao

Jiayang Xi et al 2026 The Astrophysical Journal Letters 1007 .

  • Provider: AAS Journals

Caption: Figure 1.

Example of the differential behaviors of alpha particles and protons near the coherent structure. (a) PVI of magnetic field. (b) Magnetic field BRTN in RTN coordinates. (c) Velocity field VRTN in RTN coordinates. (d) Number density of protons np and alpha particles nα at 100 times scale. (e) Proton temperature Tp. (f) Alpha-particle temperature Tα. (g) Temperature ratio Tα/Tp. (h) Density ratio nα/np. (i) Normalized drift velocity between alpha particles and protons.

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