Study of Electromagnetic Electron Cyclotron Waves for Kappa Distribution with AC Field in the Magnetosphere of Saturn
- Авторлар: Kandpal P.1, Pandey R.S.1
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Мекемелер:
- Department of Applied Physics, Amity Institute of Applied Sciences
- Шығарылым: Том 44, № 6 (2018)
- Беттер: 568-575
- Бөлім: Space Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/186789
- DOI: https://doi.org/10.1134/S1063780X18060041
- ID: 186789
Дәйексөз келтіру
Аннотация
Parallel propagating electromagnetic electron cyclotron (EMEC) waves in the extended plasma sheet (~12RS) and in the outer magnetosphere (~18RS) of Saturn have been studied. A dispersion relation for parallel propagating relativistic EMEC waves has been applied to the magnetosphere of Saturn, and comparisons have been made with the data of Voyager 1 at these radial distances. The detailed investigations for EMEC waves have been done in the presence of the perpendicular AC electric field, using the kappa distribution function. The relativistic temporal growth rate is calculated by the method of characteristic solution with the data provided by Voyager 1. The effect of the suprathermal electron density, temperature anisotropy, frequency of AC electric field, thermal energy of ions, and relativistic factor on the temporal growth rate of EMEC wave emission has been studied. The simulation results show that the growth of parallel propagating EMEC waves is significantly affected by variations in the temperature anisotropy, electron density, ion thermal energy, and relativistic factor in both the extended plasma sheet and the outer magnetosphere of Saturn. The temperature anisotropy (T⊥/T║), ion thermal energy (KBT║i), and electron density (n0) have been found to be a major source of free energy for parallel propagating EMEC waves in both regions.
Авторлар туралы
P. Kandpal
Department of Applied Physics, Amity Institute of Applied Sciences
Email: rspandey@amity.edu
Үндістан, Noida
R. Pandey
Department of Applied Physics, Amity Institute of Applied Sciences
Хат алмасуға жауапты Автор.
Email: rspandey@amity.edu
Үндістан, Noida
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