10.11578/1474110
Yoo, Jongsoo
0000000338811995
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Jara-almonte, J
0000000307606198
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Yerger, Evan
0000000293481290
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Wang, Shan
0000000267837759
NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
Qian, Tony
0000000265365399
Department of Physics, Columbia University, New York, New York, (United States)
Le, Ari
0000000293816839
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Ji, Hantao
0000000196009963
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Yamada, Masaaki
0000000349961649
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Fox, William
000000016289858X
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Kim, Eun-Hwa
0000000161794666
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Chen, Li-Jen
Gershman, Daniel
Whistler wave generation by anisotropic tail electrons during asymmetric magnetic reconnection in space and laboratory ENHANCED
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
2018
en
ENHANCED
Whistler wave
Dispersion relation
Temperature anisotropy
Magnetic reconnection
Lowerâhybrid drift instability
1474110
AC02-09CH11466
None
Specialized Mix
10.1029/2018GL079278
https://doi.org/10.1029/2018GL079278
Whistler wave generation near the magnetospheric separatrix during reconnection at the dayside magnetopause is studied with data from the Magnetospheric Multiscale (MMS) mission. The dispersion relation of the whistler mode is measured for the first time near the reconnection region in space, which shows that whistler waves propagate nearly parallel to the magnetic field line. A linear analysis indicates that the whistler waves are generated by temperature anisotropy in the electron tail population. This is caused by loss of electrons with a high velocity parallel to the magnetic field to the exhaust region. There is a positive correlation between activities of whistler waves and the lower-hybrid drift instability (LHDI) both in laboratory and space, indicating the enhanced transport by LHDI may be responsible for the loss of electrons with a high parallel velocity.