A Fresh Look into the Interaction of Exoplanets Magnetosphere with Stellar Winds using MHD Simulations

التفاصيل البيبلوغرافية
العنوان: A Fresh Look into the Interaction of Exoplanets Magnetosphere with Stellar Winds using MHD Simulations
المؤلفون: Bagheri, Fatemeh, Lopez, Ramon E., Pham, Kevin
سنة النشر: 2024
المجموعة: Astrophysics
Physics (Other)
مصطلحات موضوعية: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics
الوصف: Numerous numerical studies have been carried out in recent years that simulate different aspects of exoplanets' magnetosphere and stellar winds. These studies have focused primarily on hot Jupiters with sun-like stars. This study addresses the challenges inherent in utilizing existing MHD codes to model hot Jupiter-star systems. Due to the scaling of the system and the assumption of a uniformly flowing stellar wind at the outer boundary of the simulation, MHD codes necessitate a minimum distance of greater than 0.4 au for a Jupiter-like planet orbiting a sun-like star to avoid substantial violations of the code's assumptions. Additionally, employing the GAMERA (Grid Agnostic MHD for Extended Research Applications) MHD code, we simulate star-planet interactions considering various stellar types (Sun-like and M Dwarf stars) with both Jupiter-like and Earth-like planets positioned at varying orbital distances. Furthermore, we explore the impact of tidal locking on the total power within the magnetosphere-ionosphere systems.
Comment: 11 pages, submitted to Frontiers in Astronomy and Space Sciences
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2404.14377
رقم الأكسشن: edsarx.2404.14377
قاعدة البيانات: arXiv