Session Details

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

Tue. May 26, 2026 5:15 PM - 7:00 PM JST
Tue. May 26, 2026 8:15 AM - 10:00 AM UTC
Poster Hall Exhibition Hall 7&8, Makuhari Messe_3
convener:Jun Kimura(The University of Osaka), Kunio M. Sayanagi(NASA Langley Research Center ), Shuya Tan(Ritsumeikan University), Yuhito Shibaike(Kagoshima University), James O Donoghue( Japan Aerospace Exploration Agency), Michiko Morooka(Swedish Institute of Space Physics, Uppsala )
The giant planets shape our solar system. The physical and chemical processes they harbor provide unique opportunities to study the phenomena relevant for studying Earth and other planets, including exoplanetary systems. In this session, we welcome diverse topics encompassing the giant planets and their moons and rings, including their origins, interiors, atmospheres, compositions, surface features, electromagnetic fields, and plasma environments. To advocate for current and future outer planets exploration (Juno, New Horizons, JUICE, Europa Clipper, Dragonfly, OPENS-0, and beyond), we also solicit contributions on future missions to explore giant planet systems (e.g., Uranus Orbiter and Probe, and the OPENS Program), including how to develop better international cooperation. Discussion in this latter category will include progress in developing a solar sail mission concept for observing the Jupiter system and its Trojan asteroids. We also solicit presentations about new scientific results generated using data returned by space telescopes such as the James Webb Space Telescope (JWST).

[PPS01-P01]Estimating the Depletion Timescale of Ocean-Derived Sulfates on Europa’s Surface Based on Charged-Particle Irradiation Experiments Reproducing Europa’s Surface Charging Environment

*masaya kudo1, Tomoki Kimura1, Qingyang Lu1, Osawa Kai1, Shuya Tan2, Masahisa Kato4, Fuminori Tsuchiya3 (1.Tokyo university of science, 2.Japan Agency for Marine-Earth Science and Technology, 3.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 4.Kyoto University)

[PPS01-P02]Assessing CO2 Production and Carbonate Depletion on Europa’s Surface Based on Charged-Particle Irradiation Experiments of Na2CO3

*Qingyang Lu1, Tomoki Kimura1, Shuya Tan2, Fuminori Tsuchiya3, Yusuke Nakauchi4 (1.Tokyo University of Science , 2.Japan Agency for Marine-Earth Science and Technology, 3.Planetary Plasma and Atmospheric Research Center, Tohoku University, 4.Ritsumeikan University)

[PPS01-P03]Constraints on the Na/K Ratio in Europa’s Surface and Subsurface Ocean by Charged-Particle Irradiation Experiments and Observations of Europa’s Tenuous Atmosphere

*Osawa Kai1, Tomoki Kimura1, Fuminori Tsuchiya2, Shuya Tan3, Kazuya Yoshioka1, Shoki Morioka1, Qingyang Lu1, Go Sato1, Masaya Kudo1 (1.Tokyo University of Science , 2.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 3.Japan Agency for Marine-Earth Science and Technology)

[PPS01-P04]Reanalysis of Cassini Saturn Kilometric Radiation source crossing: Search for loss cone Cyclotron Maser Instability

*Brieuc Collet1, Yasumasa Kasaba1, Laurent Lamy2,3 (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan, 2.Aix Marseille Univ., CNRS, CNES, LAM, Marseille, France,, 3.LIRA, Observatoire de Paris, PSL, CNRS, SU/UPMC, UPD, 5 place Jules Janssen, 92195 Meudon, France)

[PPS01-P05]Evaluation of the potential for passive radio sounding of icy moons based on radar equation and ray tracing studies

*Ayuto Kawakami1, Yasumasa Kasaba1, Atsushi Kumamoto1, Fuminori Tsuchiya1 (1.Planetary Plasma and Atmospheric Research Center, Tohoku University)

[PPS01-P06]Evaluation of Jovian lightning studies based on the developed Planetary Lightning Detector and light curve model

*Tatsuharu Ono1, Yukihiro Takahashi1 (1.Department of Cosmosciences, Graduate School of Science, Hokkaido University)

[PPS01-P07]Analysis of spatial structure of relativistic electrons in the Jupiter’s radiation belts using GMRT : Coordinated observations with Juno

*Masamichi Waga1, Fuminori Tsuchiya1, Hajime Kita2, Hiroaki Misawa1 (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 2.Tohoku Institute of Technology)

[PPS01-P08]A Case Study of EMIC Waves Observed During an Injection Event in Jupiter's Magnetosphere Based on Juno’s Observation

*Tomofumi Noguchi1, Yuto Katoh1, Atsushi Kumamoto1, Fuminori Tsuchiya1, Shinnosuke Satoh1,2, Brieuc Collet1 (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Aix-Marseille Université, CNRS, CNES, Institut Origines, LAM, Marseille, France)

[PPS01-P09]Morphological and Reflectance Variations of Jupiter’s Great Red Spot Using Visible Imaging Data

*Seiko Takagi1, Akihiro Kono1, Jun Kimura2 (1.Hokkaido University, 2.The University of Osaka)

[PPS01-P10]Polarization characteristics of Jupiter's hectometric radio emission - II

*Hiroaki Misawa1, Fuminori Tsuchiya1, Rikuto Yasuda1, Yoshiya Kasahara2, Yoshizumi Miyoshi3 (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 2.Emerging Media Initiative, Kanazawa University, 3.Institute for Space-Earth Environmental Research, Nagoya University)

[PPS01-P11]Variability characteristics of Jupiter's narrowband kilometric radioation (nKOM)

Rentaro Sugawara1, *Hiroaki Misawa1, Fuminori Tsuchiya1, Rikuto Yasuda1 (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University)

[PPS01-P12]Titan's Ionospheric Density Structure Derived by Polarized Saturnian Radio Occultations during Cassini's Titan 15 Flyby

Rikuto Yasuda1, *Hiroaki Misawa1, Baptiste Cecconi2, Corentin K. Louis2, Tomoki Kimura3, Takeru Kato1, Yasumasa Kasaba1, Thomas Gautier4,2, Lucas Grosset2, Shotaro Sakai5, Fuminori Tsuchiya1 (1.Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 2.LIRA, Observatoire de Paris, 3.Department of Physics, Faculty of Science, Tokyo University of Science, 4.LATMOS/IPSL, UVSQ Universite Paris-Saclay, Sorbonne Universite, CNRS, 5.Faculty of Environment and Information Studies, Keio University)

[PPS01-P13]Preliminary analysis of Titan's ionospheric density structure using Saturn radio occultation

*Takeru Kato1, Rikuto Yasuda1, Yasumasa Kasaba1, Hiroaki Misawa1, Fuminori Tsuchiya1, Corentin Louis2, Baptiste Cecconi2, Tomoki Kimura3 (1.Tohoku University, 2.LIRA, Observatoire de Paris, CNRS, PSL Research University, 3.Tokyo University of Science)

[PPS01-P14]Machine learning based terrain classification of Saturn’s moon Titan using SAR and VIMS data

*Kumpei Goromaru1, Hitoshi Hasegawa1, An-Sheng Lee1 (1.Kochi University)

[PPS01-P15]An Improved Upper Limit of Cyanodiacetylene (HC5N) in the Atmosphere of Titan

*Takahiro IINO2,1, Hideo Sagawa5, Kotomi Taniguchi3, Hikaru Kubota5, Shigeru Takahashi4, Martin Cordiner6 (1.Information Technology Center, the University of Tokyo, 2.University of Yamanashi, 3.NAOJ, 4.University of Hyogo, 5.Kyoto Sangyo University, 6.NASA Goddard Space Flight Center)

[PPS01-P16]Time Variations of Titan's Atmosphere Proved by Ground-based Telescope

*Mizuho NAKAJIMA1, Seiko Takagi1, Mitsuteru Sato1, Hisayuki Kubota1, Yukihiro Takahashi1 (1.Hokkaido University)

[PPS01-P17]Coupling mineral assemblage modelling and thermal evolution of the deep interiors of Uranus’ icy satellites

*Artem Lebedev1,2,3, Giuseppe Mitri2,3, Camilla Cioria2,3, Anastasia Consorzi2,3 (1.Department of Physics, University of Trento, 2.Department of Engineering and Geology, D'Annunzio University, 3.International Research School of Planetary Sciences)

[PPS01-P18]Coupled thermal and dynamo evolution of Ganymede: Implications for core size and composition

Ryohei Kawakami1, *Jun Kimura1, Taro Matsuo1, Sho Sasaki1 (1.The University of Osaka)

[PPS01-P19]Global N-body simulation of propeller structures in Saturn's rings

*Ryo Tamon1, Keiji Ohtsuki1 (1.Graduate School of Science, Kobe University)

[PPS01-P20]Development of a compact low-temperature experimental system for simulating low-velocity collisions of Saturn’s ring particles

*Yukari M. Toyoda1,2 (1.Astrobiology Center, 2.National Astronomical Observatory of Japan)

[PPS01-P21]Diffusion Process of Ejecta from Saturn's Moon Enceladus: Toward Estimating Accretion Rates into Saturn's Main Ring

*Takayuki Sakamoto1, Jun Kimura1, Taro Matsuo1, Sho Sasaki1 (1.The University of Osaka)

[PPS01-P22]Feasibility Study of Zodiacal Light and Extragalactic Background Light Observations During the Cruise Phase of OPENS-0

*Kohji Takimoto1, Shuji Matsuura2, Kohji Tsumura3, Kei Sano4, Aoi Takahashi1, Michael Zemcov5, Andrew Poppe6, Hajime Yano1, Naoya Sakatani1, Takeshi Imamura7, Yuhito Shibaike8, Hajime Kawahara1, Ryu Funase1, Naoya Ozaki1, Kakeru Tokunaga1, Yuki Kubo9 (1.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2.Kwansei Gakuin University, 3.Tokyo City University, 4.Kyushu Institute of Technology, 5.Rochester Institute of Technology, 6.University of California, Berkeley, 7.The University of Tokyo, 8.Kagoshima University, 9.Kobe University)