Jovian electrons as an instrument of investigation of the interplanetary medium structure

International Conference on Particle Physics and Astrophysics

Daibog, E.^1 ; Kecskemety, K.^2 ; Lazutin, L.^1 ; Logachev, Yu^1

Space Science Division, Scobeltsyn Institute for Nuclear Physics, Moscow State University, Russia^1

Wigner Research Centre for Physics, Budapest, Hungary^2

关键词: Heliospheres;    Interplanetary medium;    Jovian electrons;    Magnetic trap;    Near-Earth;    Quasi-stationary state;    Solar activity;    Solar rotation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/3/032024/pdf
DOI  :  10.1088/1742-6596/675/3/032024

来源: IOP

【 摘 要 】

Electrons accelerated in the Jupiter magnetosphere are usually registered by near-earth spacecraft under optimal magnetic connection between the Earth and Jupiter, taking place once in 13 months (Earth- Jupiter synodic period). During the period of minimal solar activity between 23 and 24 cycles in 2007-2009 electrons of MeV energies were observed practically at each of 14 solar rotations (more than a year), which requires extremely long quasistationary state of inner heliosphere with constant Earth- Jupiter connection. To explain this situation the model with long living magnetic trap, co-rotating with the Sun, was suggested. Passing by the Jupiter this trap captures electrons, which then are registered by subsequent passing of the trap by the Earth.