JpGU-AGU Joint Meeting 2026

セッション情報

印刷

[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-PS08] Science of Venus in the post-VEx/Akatsuki era

2026年5月29日(金) 13:45 〜 15:15 303 (幕張メッセ国際会議場)

座長:原田 裕己(名古屋大学宇宙地球環境研究所)、Tellmann Silvia(University of Cologne)

On 18 September 2025, the Akatsuki team transmitted the "termination of telecommunication" command to the spacecraft, thereby officially ending the operation of Akatsuki which has been and still is in the Venus' orbit since December 2015. ESA's Venus Express (in orbit from April 2006 till December 2014) and Akatsuki together had greatly advanced our knowledge about the Venusian atmosphere, with the focus of VEx being primarily chemistry and Akatsuki's focus being almost exclusively dynamics. The planetary science community in the world gained a strong momentum to further investigate Earth's twin sister: Two of the upcoming three Venus missions, NASA's VERITAS and ESA's EnVision, are more focused on the geology, interior and evolution of the solid body with the synthetic aperture radar and other tools. Another NASA mission DAVINCI will sense both the atmosphere and the surface by a descent probe. Other recent developments include the approval of the Venus Orbiter Mission (VOM) by the Indian government; the upgrade of Chinese VOICE mission to a Venus sample return mission, and announcement of the first private sector Venus mission, Venus Life Finder.
This momentum is driven by the analytical studies based on all previous Venus missions, numerical simulations (recently with data assimilation), ground-based observations, as well as laboratory experiments. This session will therefore cover all aspects of Venus science, derived observationally or theoretically, from its interior over the surface and atmosphere to the surrounding plasma environment and including possible implications for exoplanets. Contributions at all levels, from early-career researchers to experts, are all welcome.

13:45 〜 14:05

[PPS08-01] Constraining Venus’ Water Loss History Using D/H Ratio observations from Ion Cyclotron Wave Analysis

★Invited Papers

*Fabian Weichbold1,2, Helmut Lammer1, Manuel Scherf1, Daniel Schmid1, Cyril Simon-Wedlund2, Christian Mazelle3, Tereza Constantinou4, Martin Volwerk1, Woitke Peter1 (1. Space Research Institute (IWF), Austrian Academy of Sciences (OeAW), Austria , 2. Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria , 3. Institut de Recherche en Astrophysique et Planétologie, CNRS, University of Toulouse, CNES, Toulouse, France , 4. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge, CB3 0HA, UK)

14:05 〜 14:20

[PPS08-02] Formation of V0 Layer in Venus’ Nightside Ionosphere Induced by SEP Events

*Pucheng Lu1, Keshav R Tripathi2, Yuki Nakamura1, Takeshi Imamura3 (1. Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2. Physical Research Laboratory, Department of Space, Government of India, 3. Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo)

14:20 〜 14:40

[PPS08-03] Elucidating the role of Polysulfur Allotropes in the Venusian Atmosphere: (Photo)chemistry and Cloud condensation.

★Invited Papers

*Benjamin Normann Frandsen1, Robert Skog1, Maxence Lefévre2, Franck Lefévre2, Anni Määttänen2, Aurélien Stolzenbach3, Ashwin Braude4 (1. University of Helsinki, Faculty of Science, Department of Chemistry, Molecular Science Unit, Finland, 2. LATMOS/IPSL, Sorbonne Université, UVSQ, Université Paris-Saclay, CNRS, Paris, France, 3. Instituto de Astrofísica de Andalucía (IAA), Granada, Spain, 4. Astera Institute, Emeryville, CA, USA)

14:40 〜 14:55

[PPS08-04] Multi-Spatiotemporal Variations of the Venusian Cloud-Top Sulfur Dioxide Derived from Akatsuki/UVI Observations

*岩中 達郎1、今村 剛2、青木 翔平2,3、Marcq Emmanuel4、佐川 英夫5 (1. 理化学研究所 計算科学研究センター、2. 東京大学大学院 新領域創成科学研究科、3. 東北大学大学院 理学研究科、4. LATMOS/IPSL, UVSQ Université Paris-Saclay、5. 京都産業大学 理学部)

×

認証

×

要旨・抄録、PDFの閲覧には参加者用アカウントでのログインが必要です。参加者ログイン後に閲覧・ダウンロードできます。
» 参加者用ログイン