Communication Dans Un Congrès Année : 2024

Global hybrid simulations and soft X-ray imaging of the magnetosphere under diverse solar wind conditions: Radial IMF, extreme magnetic storms, and HFA events — Preliminary studies for the SMILE mission

Résumé

The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) is a joint mission of the European Space Agency (ESA) and the Chinese Academy of Sciences (CAS). Primary goals are investigating the dynamic response of the Earth's magnetosphere to the solar wind (SW) impact via simultaneous in situ magnetosheath plasma and magnetic field measurements, X-Ray images of the magnetosheath and magnetic cusps, and UV images of global auroral distributions. Magnetopause deformations associated with magnetosheath high speed jets (HSJs) under a quasi-radial IMF condition are studied using a three dimensional (3-D) global hybrid simulation. Soft X-ray intensity calculated based on both physical quantities of solar wind proton and oxygen ions is compared. We obtain key findings concerning deformations at the magnetopause: Magnetopause deformations appear related to the foreshock transients; X-ray intensities estimated using solar wind H+ and self-consistent O7+ ions are consistent with each other. Visual spacecraft are employed to discuss the discrimination ability for capturing magnetopause deformations on Lunar and polar orbits, respectively. The magnetopause dynamics and associated X-ray LOS imaging under extreme solar storm conditions and HFA events will also be discussed. These preliminary results might contribute to the pre-studies for the SMILE and LEXI missions by providing qualitative and quantitative soft X-ray estimates of magnetospheric dynamic processes.

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Dates et versions

hal-05379359 , version 1 (24-11-2025)

Identifiants

  • HAL Id : hal-05379359 , version 1

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Zhongwei Yang, Tianran Sun, Huang Can, Riku Järvinen, Binbin Tang, et al.. Global hybrid simulations and soft X-ray imaging of the magnetosphere under diverse solar wind conditions: Radial IMF, extreme magnetic storms, and HFA events — Preliminary studies for the SMILE mission. AGU Fall Meeting 2024, Dec 2024, Washington DC, United States. ⟨hal-05379359⟩
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