TY - JOUR
T1 - Cross-Energy Couplings from Magnetosonic Waves to Electromagnetic Ion Cyclotron Waves through Cold Ion Heating inside the Plasmasphere
AU - Asamura, Kazushi
AU - Shoji, Masafumi
AU - Miyoshi, Yoshizumi
AU - Kasahara, Yoshiya
AU - Kasaba, Yasumasa
AU - Kumamoto, Atsushi
AU - Tsuchiya, Fuminori
AU - Matsuda, Shoya
AU - Matsuoka, Ayako
AU - Teramoto, Mariko
AU - Kazama, Yoichi
AU - Shinohara, Iku
N1 - Funding Information:
This work was supported by the Japan Society for the Promotion of Science (JSPS), KAKENHI Grants No. 17H06140, No. 20H01959, No. 20K14546 and No. 21H04526.
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/12/10
Y1 - 2021/12/10
N2 - Using a novel wave-particle interaction analysis, we show observational evidence of energy transfer from fast magnetosonic waves (MSWs) to low-energy protons in the magnetosphere. The analysis clearly indicates that the transferred proton energies are further converted to excite electromagnetic ion cyclotron waves. Since MSWs are excited by hot ions, cross-energy coupling of ions occurs through MSWs. The result also suggests a new energy transfer path of exciting electromagnetic ion cyclotron waves in the magnetosphere, and a complex interplay between various wave modes and particle populations.
AB - Using a novel wave-particle interaction analysis, we show observational evidence of energy transfer from fast magnetosonic waves (MSWs) to low-energy protons in the magnetosphere. The analysis clearly indicates that the transferred proton energies are further converted to excite electromagnetic ion cyclotron waves. Since MSWs are excited by hot ions, cross-energy coupling of ions occurs through MSWs. The result also suggests a new energy transfer path of exciting electromagnetic ion cyclotron waves in the magnetosphere, and a complex interplay between various wave modes and particle populations.
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U2 - 10.1103/PhysRevLett.127.245101
DO - 10.1103/PhysRevLett.127.245101
M3 - Article
C2 - 34951776
AN - SCOPUS:85121595328
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 24
M1 - 245101
ER -