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Plasmatrough exohiss waves observed by Van Allen Probes: Evidence for leakage from plasmasphere and resonant scattering of radiation belt electrons
Author(s) -
Zhu Hui,
Su Zhenpeng,
Xiao Fuliang,
Zheng Huinan,
Wang Yuming,
Shen Chao,
Xian Tao,
Wang Shui,
Kletzing C. A.,
Kurth W. S.,
Hospodarsky G. B.,
Spence H. E.,
Reeves G. D.,
Funsten H. O.,
Blake J. B.,
Baker D. N.
Publication year - 2015
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2014gl062964
Subject(s) - plasmasphere , van allen radiation belt , hiss , physics , van allen probes , whistler , electron , poynting vector , scattering , computational physics , geophysics , radiation , magnetosphere , atomic physics , plasma , nuclear physics , optics , magnetic field , quantum mechanics
Exohiss waves are whistler mode hiss observed in the plasmatrough region. We present a case study of exohiss waves and the corresponding background plasma distributions observed by the Van Allen Probes in the dayside low‐latitude region. The analysis of wave Poynting fluxes, suprathermal electron fluxes, and cold electron densities supports the scenario that exohiss leaks from the plasmasphere into the plasmatrough. Quasilinear calculations further reveal that exohiss can potentially cause the resonant scattering loss of radiation belt electrons ∼