Analysis of the Interaction between Low-Frequency Waves and Ions in the High-Altitude Cusp Region Observed by Satellite Cluster
DUAN Su-Ping1, LIU Zhen-Xing1, CAO Jin-Bin1, SHI Jian-Kui1, LU Li1, LI Zhong-Yuan2, Q. G. Zong3, H. Reme4, N. Cornilleau-Wehrlin5, A. Balogh6, M. Andre7
1Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
2School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026
3Center for Space Physics, Boston University, Boston, MA 02215, USA
4CESR/CNRS, 9 Avenue du Colonel Roche, B.P.4346,F-31028 Toulouse Cedex 4, France
5CETP, 10/12 Avenue de L’Europe, F-78140 Velizy, France
6Space and Atmospheric physics group, The Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ, UK
7Swedish Institute of Space physics, Uppsala Division, Box 537, SE-751 21 Uppsala, Sweden
Analysis of the Interaction between Low-Frequency Waves and Ions in the High-Altitude Cusp Region Observed by Satellite Cluster
1Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080
2School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026
3Center for Space Physics, Boston University, Boston, MA 02215, USA
4CESR/CNRS, 9 Avenue du Colonel Roche, B.P.4346,F-31028 Toulouse Cedex 4, France
5CETP, 10/12 Avenue de L’Europe, F-78140 Velizy, France
6Space and Atmospheric physics group, The Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BZ, UK
7Swedish Institute of Space physics, Uppsala Division, Box 537, SE-751 21 Uppsala, Sweden
Abstract： The energy transfer between ions (protons) and low frequency waves (LFWs) in the frequency range f1 from 0.3 to 10Hz is observed by Cluster crossing the high-altitude polar cusp. The energy transfer between low frequency waves and ions has two means. One is that the energy is transferred from low frequency waves to ions and ions energy increases. The other is that the energy is transferred from ions to low frequency waves and the ion energy decreases. Ion gyratory motion plays an important role in the energy transfer processes. The electromagnetic field of f1 LFWs can accelerate or decelerate protons along the direction of ambient magnetic field and warm or refrigerate protons in the parallel and perpendicular directions of ambient magnetic field. The peak values of proton number densities have the corresponding peak values of electromagnetic energy of low-frequency waves. This implies that the kinetic Alfven waves and solitary kinetic Alfven waves possibly exist in the high-altitude cusp region.
DUAN Su-Ping;LIU Zhen-Xing;CAO Jin-Bin;SHI Jian-Kui;LU Li;LI Zhong-Yuan;Q. G. Zong;H. Reme;N. Cornilleau-Wehrlin;A. Balogh;M. Andre. Analysis of the Interaction between Low-Frequency Waves and Ions in the High-Altitude Cusp Region Observed by Satellite Cluster[J]. 中国物理快报, 2006, 23(5): 1351-1354.
DUAN Su-Ping, LIU Zhen-Xing, CAO Jin-Bin, SHI Jian-Kui, LU Li, LI Zhong-Yuan, Q. G. Zong, H. Reme, N. Cornilleau-Wehrlin, A. Balogh, M. Andre. Analysis of the Interaction between Low-Frequency Waves and Ions in the High-Altitude Cusp Region Observed by Satellite Cluster. Chin. Phys. Lett., 2006, 23(5): 1351-1354.
2006, Vol. 23 
