A new physical model of the electron radiation belts of Jupiter inside Europa's orbit

被引：38
|
作者：
Nenon, Q. [1 ]
Sicard, A. [1 ]
Bourdarie, S. [1 ]
机构：
[1] Off Natl Etud & Rech Aerosp, French Aerosp Lab, Toulouse, France
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2017年 / 122卷 / 05期
关键词：
Jupiter; radiation belt; electron; physical modeling; wave-particle interaction; ENERGY DIFFUSION-COEFFICIENTS; WAVE-PARTICLE INTERACTIONS; IO PLASMA TORUS; PITCH-ANGLE; RELATIVISTIC ELECTRONS; ACCELERATION; CHORUS; DISTRIBUTIONS; INTENSITY; CYCLOTRON;
D O I：
10.1002/2017JA023893
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new global physical model of the electron radiation belts of Jupiter inside the orbit of Europa is presented. It is an update of the Office National d'Etudes et de Recherches Aerospatiales model Salammbo proposed by Sicard and Bourdarie (2004) that now integrates a contribution of the wave-particle interaction above the orbit of Io. In addition, a revisited and more realistic boundary condition near Europa is implemented. The new Salammbo model is validated against the in situ flux measurements obtained by the Pioneer 10, Pioneer 11, and Voyager 1 missions. The role of the wave-particle interaction is discussed by investigating its effect on the predicted in situ fluxes. In particular, the interaction appears in our simulations as a strong pitch angle scattering process explaining the flux depletions intensities near the orbit of Io as well as the flux intensities near the spacecraft perijoves.
引用
收藏
页码：5148 / 5167
页数：20
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