Publication Date:
2023-07-26
Description:
The interaction of solar wind with Earth’s magnetosphere supports various Ultra-Low- Frequency (ULF: 1mHz-few Hz) wave modes. In our study, we model the natural modes of oscillations in the Earth’s magnetic field using an analytic and numerical approach. The model provides solutions to the spatial and temporal structures of the ULF waves in the dipole field geometry for realistic density variations. The results of the analytic model match well with the numerical solutions. The provision of inclusion of finite ionospheric conditions in the model makes the model applicable to different local times, seasons, and regions of the magnetosphere. The model is validated with observations from satellite and ground-based magnetometer data. The observations and model together are able to reproduce the salient features of Earth’s magnetosphere. The model is extended to the Jovian magnetosphere to reproduce the field line eigen modes observed from Galileo flybys and crossing of JUNO satellite crossing over Ganymede.
Language:
English
Type:
info:eu-repo/semantics/conferenceObject
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