日本地球惑星科学連合2025年大会

講演情報

[E] 口頭発表

セッション記号 P (宇宙惑星科学) » P-PS 惑星科学

[P-PS01] Outer Solar System Exploration Today, and Tomorrow

2025年5月30日(金) 13:45 〜 15:15 301B (幕張メッセ国際会議場)

コンビーナ:木村 淳(大阪大学)、佐柳 邦男 M(NASA Langley Research Center)、土屋 史紀(東北大学大学院理学研究科惑星プラズマ・大気研究センター)、丹 秀也(国立研究開発法人海洋研究開発機構)、座長:塩谷 圭吾(宇宙科学研究所)、北 元(東北工業大学 工学部 情報通信工学科)

13:45 〜 14:00

[PPS01-13] Review of radio emissions induced by Jovian moons and extension to star-planet interactions

★Invited Papers

*Corentin Kenelm Louis1 (1.LIRA, Observatoire de Paris, CNRS)

キーワード:Magnetospheres, Planetary Radio Emissions, Simulation code, Exoplanets, Juno, Nançay Decameter Array (NDA) radiotelescope

Jupiter's radio emissions were first discovered in the 1950s. Since then, terrestrial radio telescopes have monitored Jupiter's emissions above 10 MHz, while several spacecraft have conducted flybys of the planet or orbited it, such as Juno. The synergy between space-based and ground-based observations has made it possible to obtain complementary data, including multi-point, in situ and statistical measurements. In this presentation, we will review recent discoveries of radio emissions induced by the Galilean moons made in recent years using Juno and ground-based radio telescopes, and look ahead to future missions to Jupiter, such as JUICE. In the final part of this presentation, we will take a look outside our solar system, using Jupiter, often considered to be a miniature analogue of an exoplanet, as a benchmark to search for the giant analogue of satellite-induced radio emissions: star-planet interaction radio emissions. We will present an example of auroral stellar radio emission from the red dwarf AD Leonis, detected by the Chinese FAST radio telescope, which highlights the ability to constrain in situ parameters, such as source locations and the energy of the electrons responsible for these emissions, using tools such as the ExPRES simulation code.