Electron Dynamics and Whistler-Mode Waves Inside the Short Large-Amplitude Magnetic Field Structures

Bai, Shi-Chen1,2,3; Shi, Quanqi2; Zhang, Hui2; Guo, Ruilong2; Shen, Xiao-Chen4; Liu, Terry Z.5; Degeling, Alexander W.2; Tian, Anmin2,3; Bu, Yude1; Zhang, Shuai6; Wang, Mengmeng2,6; Ma, Xiao2

2023-11-01

10.1029/2023JA031816

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS   Impact Factor & Quartile

2169-9380

2169-9402

On the quasi-parallel side of the bow shock, ultra-low frequency waves and nonlinear structures such as shocklet and short large-amplitude magnetic structure (SLAMS) are commonly observed, which are powered by energetic reflected ions and form in different stages during steepening. Solar wind ions are heated significantly inside these nonlinear structures. However, what role electrons played inside these structures is full of mystery. Recent numerical simulations reveal that electron dynamics and whistler-mode waves inside these structures are responsible for triggering bow shock reconnection on the quasi-parallel side. In this paper, we focus on electron distributions and acceleration inside SLAMS. Electrons are accelerated/decelerated in regions prior to/after the peaked magnetic field, exciting/decaying whistler-mode waves locally which well-regulated the electron distribution. Our work reveals the electron dynamics inside the SLAMS and provides new insights into plasma heating and acceleration near the quasi-parallel shock.

short large-amplitude magnetic field structure whistler-mode wave electron dynamics

SCI

English

Others

This research was funded by the National Natural Science Foundation of China (Grants 42225405, 41974189, and 42275135) and the Science and Technology Development Fund, Macau SAR (File no. SKL-LPS(MUST)-2021-2023). S. -C. Bai was supported by the Natural Sc["42225405","41974189","42275135"] ; Science and Technology Development Fund, Macau SAR[2021-2023] ; SKL-LPS(MUST)[ZR2022QD135]

Astronomy & Astrophysics

Astronomy & Astrophysics

WOS:001092410800001

AMER GEOPHYSICAL UNION

SPACE SCIENCE

Web of Science

1.Shandong Univ, Sch Math & Stat, Weihai, Peoples R China
2.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Envi, Weihai, Peoples R China
3.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China
4.Boston Univ, Ctr Space Phys, Boston, MA USA
5.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA
6.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China

Bai, Shi-Chen,Shi, Quanqi,Zhang, Hui,et al. Electron Dynamics and Whistler-Mode Waves Inside the Short Large-Amplitude Magnetic Field Structures[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2023,128(11).

Bai, Shi-Chen.,Shi, Quanqi.,Zhang, Hui.,Guo, Ruilong.,Shen, Xiao-Chen.,...&Ma, Xiao.(2023).Electron Dynamics and Whistler-Mode Waves Inside the Short Large-Amplitude Magnetic Field Structures.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,128(11).

Bai, Shi-Chen,et al."Electron Dynamics and Whistler-Mode Waves Inside the Short Large-Amplitude Magnetic Field Structures".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 128.11(2023).