Seminars

Lecturer: Jesper Lindkvist (IRF)
Date: 2014-12-18 10:00
Place: Aniara

Induced Magnetic Dipole at Callisto: 3-D Hybrid Modeling of Flybys by Galileo

Jesper Lindkvist
Swedish Institute of Space Physics

Abstract.
Modeling the interaction between Callisto and Jupiter’s magnetosphere is important to understand the origin of the magnetic field perturbations observed by Galileo, potentially related to subsurface oceans. By using a 3-D hybrid plasma solver, we have varied the induced magnetic dipole responses due to the time-varying magnetic field of the Jovian magnetosphere corresponding to the C3, C9, and C10 flybys by Galileo. The internal conductivity of Callisto has been set to match the induced dipole response. The model is thus including the physics of a time-varying magnetic field and the dynamics of the magnetospheric plasma. We see that the magnetic response by Callisto depends strongly on the magnetospheric plasma environment.

Created 2014-09-22 10:34:48 by Uwe Raffalski
Last changed 2014-11-28 07:29:26 by Mats Holmström