A new physical model of the electron radiation belts of Jupiter inside Europa's orbit. Issue 5 (9th May 2017)

• Record Type: Journal Article
• Authors: Nénon, Q.; Sicard, A.; Bourdarie, S.
• Is Part Of: Journal of geophysical research. Volume 122:Issue 5(2017)
• Page Start: 5148
• Page End: 5167
• Publication Date: 2017-05-09
• Subjects: Jupiter -- radiation belt -- electron -- physical modeling -- wave‐particle interaction; Magnetospheric physics -- Periodicals; Space environment -- Periodicals; Cosmic physics -- Periodicals; Planets -- Atmospheres -- Periodicals; Heliosphere (Astrophysics) -- Periodicals; Geophysics -- Periodicals; 523.01
• DOI: 10.1002/2017JA023893
• Languages: English
• ISSNs: 2169-9380

Abstract

Abstract: 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 Aérospatiales model Salammbô 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 Salammbô 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. Key Points: A new global physical model of the electron radiation belts of Jupiter inside Europa's orbit is presented The Pioneer 10, Pioneer 11, Voyager 1, and Galileo flux measurements near Europa are used to implement a realistic boundary condition The wave‐particle interaction above the orbit of the moon Io is a key physical mechanism to explain the Jovian electron belts morphology