TY JOUR TI Importance of the electron plasma parameter for excitation of chorus and formation of magnetic field irregularity in the region of their excitation KW VLF emissions KW chorus KW wave-particle interaction KW data analysis KW middle magnetosphere JO Solnechno-Zemnaya Fizika AU Bespalov, P.A. AU Savina, O.N. AU Zharavina, P.D. PY 2024 IS 10 PB Institute of Solar-Terrestrial Physics SB RAS