[P-PS04] Mercury Science and Exploration

Sun. May 25, 2025 9:00 AM - 10:30 AM 304 (International Conference Hall, Makuhari Messe)

convener:Go Murakami(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Sae Aizawa(Laboratoire de Physique des Plasmas, CNRS), Yuki Harada(Kyoto University), Shunichi Kamata(Faculty of Science, Hokkaido University), Chairperson:Go Murakami(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Yuki Harada(Kyoto University), Shunichi Kamata(Faculty of Science, Hokkaido University)

Mercury, the innermost planet in our Solar System, with its unique features, holds vital clues to understanding the evolution of terrestrial planets and the solar system. NASA's Mariner-10 and MESSENGER missions provided valuable insights but also left outstanding questions. These will soon to be addressed by the joint ESA-JAXA two spacecraft mission, BepiColombo, which is currently en route to Mercury and has already conducted several flybys. This session welcomes contributions on all aspects of Mercury's environment, including its origin, formation, geology, surface composition, interior structure, exosphere, magnetosphere, gravity, and magnetic fields, as well as their coupling using various research methods such as modeling, laboratory experiments, and observations (ground-based, remote-sensing, and in-situ). We also encourage early analyses of BepiColombo flyby data and discussions regarding future missions to Mercury.

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9:00 AM - 9:15 AM

[PPS04-01] Overview and initial results of BepiColombo Mercury flybys

*Go Murakami¹, Geraint Jones² (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.European Space Agency)

9:15 AM - 9:30 AM

[PPS04-02] Summary of the Mercury Flyby Observations by MPPE on BepiColombo/Mio

*Yoshifumi Saito¹, Yuki Harada², Sae Aizawa³, Lina Hadid³, Dominique Delcourt³, Nicolas Andre⁴, Masafumi Hirahara⁵, Stas Barabash⁶, Kazushi Asamura¹, Yoshifumi Futaana⁶, Takeshi Takashima¹, Shoichiro Yokota⁷ (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.Kyoto University, 3.Laboratoire de Physique des Plasmas, 4.Institut de Recherche en Astrophysique et Planétologie, 5.Nagoya University, 6.The Swedish Institute of Space Physics, 7.Osaka University)

9:30 AM - 9:45 AM

[PPS04-03] MIA Observations of Low-energy Ions During Mio's 4th and 6th Mercury Flybys: Preliminary Results

*Yuki Harada¹, Yoshifumi Saito², Lina Hadid³, Dominique Delcourt³, Sae Aizawa³, Mathias Rojo⁴, Nicolas André⁴, Moa Persson⁵, Markus Fraenz⁶, Shoichiro Yokota⁷, Andréi Fedorov⁴, Wataru Miyake⁸, Emmanuel Penou⁴, Alain Barthe⁴, Jean-André Sauvaud⁴, Bruno Katra³, Shoya Matsuda⁹, Go Murakami² (1.Kyoto University, 2.ISAS, JAXA, 3.LPP-CNRS-Sorbonne Université-Ecole Polytechnique, 4.IRAP, CNRS-UPS-CNES, 5.Swedish Institute of Space Physics, Uppsala, 6.Max-Planck-Institute for Solar System Research, 7.Osaka University, 8.Tokai University, 9.Kanazawa University)

9:45 AM - 10:00 AM

[PPS04-04] Spatial distribution of whistler-mode waves in Mercury's magnetosphere during BepiColombo flybys

★Invited Papers

*Mitsunori Ozaki¹, Satoshi Yagitani¹, Yasumasa Kasaba², Yoshiya Kasahara¹, Shoya Matsuda¹, Yoshiharu Omura³, Mitsuru Hikishima⁴, Fouad Sahraoui⁵, Laurent Mirioni⁵, Gérard Chanteur⁵, Satoshi Kurita³, Team PWI (1.Kanazawa Univ., 2.Tohoku Univ., 3.Kyoto Univ., 4.MagneDesign Corporation, 5.Laboratoire de Physique des Plasmas)

10:00 AM - 10:15 AM

[PPS04-05] Magnetic field measurement by BepiColombo MIO MGF during cruising and prospects for the observations at Mercury

*Ayako Matsuoka¹, Wolfgang Baumjohann², Werner Magnes², Hans-Ulrich Auster³, Daniel Schmid², David Fischer², Yasuhito Narita³, Rumi Nakamura², Manabu Shinohara⁴, Yoshimasa Tanaka⁵, Akiko Fujimoto⁶, Masaki Matsushima⁷, Kazuhiro Yamamoto⁸ (1.Kyoto University, 2.The Space Research Institute, OeAW, 3.Technical University of Braunschweig, 4.Kagoshima National College of Technology, 5.National Institute of Polar Research, 6.Kyushu Institute of Technology, 7.Institute of Science Tokyo, 8.Nagoya University)

10:15 AM - 10:30 AM

[PPS04-06] A Statistical Study on Current Structure of Magnetic Field Depressions in Mercury's Magnetosphere

*Takuro OGAWA¹, Iku Shinohara², Go Murakami², Sae Aizawa³ (1.University of Tokyo, 2.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3.Laboratoire de Physique des Plasmas, CNRS)

Session information