The authors are thankful to the MMS team for making their data available to the public at 〈https://lasp.colorado.edu/mms/sdc/public〉. We thank the software development teams for SPEDAS (〈http://themis.ssl.berkeley.edu/software.shtml〉). This work is supported by the National Natural Science Foundation of China grants 41504125, 41531072, and 41674166; and the China Scholarship Council. Work at UTD is supported by the AFOSR grant of FA9550-16-1-0344.
机构署名：
本校为第一机构
院系归属：
物理与电子科学学院
摘要：
Wave number vectors k and minimum cyclotron resonant electron energies Emin of electromagnetic ion cyclotron (EMIC) waves are analyzed via the phase differencing technique by using Magnetospheric Multiscale Mission data. It is demonstrated that the phase differencing method provides an estimate of the dominant wave number when finite k spectrum broadenings occur. A case study is conducted for the EMIC event on 20 November 2015, showing remarkable agreements with spectral analysis in wave propagation directions. We find that obtained wave vector...
