East European Journal of Physics | 卷:5 |
OCCURRENCE OF ACCELERATING FIELD, FORMATION AND DYNAMICS OF RELATIVISTIC ELECTRON BEAM NEAR JUPITER | |
I. P. Levchuk1  I. N. Onishchenko2  V. I. Maslov3  S. Nikonova3  | |
[1] V.N. Karazin Kharkiv National University; | |
[2] ; | |
[3] NSC “Kharkiv Institute of Physics and Technology” NASU Kharkiv, 61108, st. Akamemicheskaya 1, Ukraine; | |
关键词: electron beam dynamics, polar light of Jupiter, a double electric layer, beam plasma instability; | |
DOI : 10.26565/2312-4334-2018-2-11 | |
来源: DOAJ |
【 摘 要 】
The possible dynamics of the electron beam, formed in the vicinity of Io, the natural satellite of Jupiter, and injected toward Jupiter, has been investigated analytically. When a beam penetrates the Jupiter plasma to a certain depth, the beam-plasma instability can be developed. In this case, the distribution function of electrons is expanded additionally by excited oscillations. These electrons, when their energy is of order of a required certain value, cause UV polar light. For closing of a current, the formation of a double electric layer is necessary. The necessary parameters and conditions for the formation of a double layer with a large jump of an electric potential at a certain height have been formulated, its properties, stability, behavior over time and beam reflection in its field for closing of a current have been described. Reflection of the beam can lead to its vortex dynamics.
【 授权许可】
Unknown