Session Details
[P-AE18]Exoplanets
Fri. May 30, 2025 5:15 PM - 7:15 PM JST
Fri. May 30, 2025 8:15 AM - 10:15 AM UTC
Fri. May 30, 2025 8:15 AM - 10:15 AM UTC
Poster Hall Exhibition Hall 7&8, Makuhari Messe
convener:Takanori Kodama(Earth-Life Science Institute, Institute of Science Tokyo), Yui Kawashima(Kyoto University), Shota Notsu(Earth and Planetary System Science Group, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Mayuko Mori(Astrobiology Center)
The number of exoplanets discovered until now is increasing thanks to space telescopes, such as Kepler and TESS. So far, we have learned of the diversity of exoplanets, which include Hot-Jupiters and Super-Earths. Among them, some exoplanets are thought to be rocky planets within the so-called habitable zone. James Webb Space Telescope, JWST, has brought fantastic results, and exoplanetary science is standing on a new era of characterization of exoplanetary atmosphere. Various next projects are underway, like Ariel and JASMINE space telescopes and TMT. A new generation of exoplanetary science will be not only a field of astronomy but also Earth-Planetary Science. Thus, we must have a comprehensive discussion based on various science backgrounds, such as stellar physics, disk evolution, planetary formation, and planetary climate. This session aims to share their knowledge and research results, inform the current status of each project of exoplanets, and to engage in lively discussions based on physics and chemistry. We welcome participants from various fields of science.
[PAE18-P01]Understanding the Structure and Starspot of the TOI-3884 System through Spot-Crossing Transits
*Mayuko Mori1, Teruyuki Hirano1, Norio Narita2, Akihiko Fukui2 (1.Astrobiology Center, 2.University of Tokyo)
[PAE18-P02]Development of Analytical Model Generalized for Exoplanetary Auroral Radio Emission
*Asa Satyagraha1, Tomoki Kimura1, Yuka Fujii2, Chihiro Tao3, Ryusei Morino1 (1.Tokyo University of Science, 2.National Astronomical Observatory of Japan, 3.National Institute of Information and Communications Technology)
[PAE18-P03]Estimation of Auroral Currents in Ultracool Dwarf Based on Magnetospheric 3D Global Magnetohydrodynamic Simulations
*Ryota Hara1, Tomoki Kimura1, Keiichiro Fukazawa2, Asa Satyagraha1, Yuka Fujii3 (1.Tokyo University of Science, 2.Research Institute for Humanity and Nature, 3.National Astronomical Observatory of Japan)
[PAE18-P04]Constraining the XUV irradiation and H/He ratios of short-period exoplanets using escaping H and He absorption lines
*Toshi Suganuma1, Shota Notsu2, Hiroyuki Kurokawa3 (1.Department of Earth and Planetary Environmental Science, School of Science, The University of Tokyo, 2.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 3.Department of Earth Science and Astronomy, Graduate School of Arts and Sciences, The University of Tokyo)
[PAE18-P05]Starspot mapping and multiwavelength variability for a young solar-type star
*Kai Ikuta1, Kosuke Namekata2,3,4,5, Hiroyuki Maehara5, Vladimir Airapetian3,4, Pascal Petit6, Yuta Notsu7,8, Daisaku Nogami2, Kazunari Shibata2,9, EK Dra collaboration (1.The University of Tokyo, 2.Kyoto University, 3.National Aeronautics and Space Administration (NASA), 4.American University, 5.National Astronomical Observatory of Japan (NAOJ), 6.Université de Toulouse, 7.University of Colorado Boulder, 8.National Solar Observatory, 9.Doshisha University)
[PAE18-P06]Impact of Ionizing Radiation on exoplanetary habitability induced by Solar and Stellar Energetic Particles
*Yosuke Alexandre Yamashiki1, Vladimir Airapetian2, Tatsuhiko Sato3, Ayu Shirakashi7, Hiroyuki Maehara4, Kosuke Namekata8,2, Daisuke Yamashiki9, Takanori Sasaki6, Yuta Notsu5 (1.Earth & Planetary Water Resources Assessment Laboratory Graduate School of Advanced Integrated Studies in Human Survivability Kyoto University, 2.NASA/GSFC , 3.JAEA, 4.NAOJ, 5.University of Colorado, 6.Department of Astronomy, Graduate School of Science, Kyoto University, 7.Faculty of Medicine, Kyoto University, 8.Graduate School of Science, Kyoto University, 9.Faculty of Science, Kyoto University)
[PAE18-P07]Climate of a tidally locked exo-terrestrial planet with NICAM
*Takanori Kodama1, Daisuke Takasuka2, Taro Higuchi3, Keigo Taniguchi1 (1.Earth-Life Science Institute, Institute of Science Tokyo, 2.Graduate school of science, Tohoku University , 3.AORI, The university of tokyo)
[PAE18-P08]Heavy element enrichment in protoplanetary disks and gas giants
with disk surface accretion
*Yoshitaka Ikeda1, Satoshi Okuzumi1, Kazumasa Ohno2 (1.Institute of Science Tokyo, 2. National Astronomical Observatory of Japan)
[PAE18-P09]The origin of the exoplanet radius valley: the effects of photoevaporation and degassing on atmospheric composition
*Junta Saito1, Hiroyuki Kurokawa1 (1.The University of Tokyo)
[PAE18-P10]Development of a New Retrieval Framework for Characterizing Magma Oceans on Sub-Neptunes
*Yuichi Ito1, Quentin Changeat2 (1.National Astronomical Observatory of Japan, Division of Science, 2.The University of Groningen)
[PAE18-P11]Sulfur Cycle on Earth-like Exoplanets: Dependency on Host Stars and Surface Water Environments, and Implications for Constraining Habitability
*Kaito Yoshida1, Hiroyuki Kurokawa1 (1.University of Tokyo)
[PAE18-P12]Planetary sciences expected by the next-generation infrared astronomical satellite GREX-PLUS - Progress report 2025
*Shota Notsu1, Akio Inoue2, Hideko Nomura3 (1.Earth and Planetary System Science Group, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Waseda University, 3.National Astronomical Observatory of Japan)
[PAE18-P13]A Study for Unveiling Planetary Evolution with Young Transiting Exoplanets
*Norio Narita1,2, Akihiko Fukui1, Teruyuki Hirano2,3, Yasunori Hori2,3, John Livingston2,3, Eiichiro Kokubo3 (1.The University of Tokyo, 2.Astrobiology Center, 3.National Astronomical Observatory of Japan)
[PAE18-P14]Tracking process of atmospheric collapse: new scheme for multi-species condensation
*Keigo Taniguchi1,2,3, Martin Turbet3,4, Takanori Kodama1, Guillaume Chaverot5, Ehouarn Millour3, Hidenori Genda1 (1.Earth-Life Science Institute, Institute of Science Tokyo, 2.Department of Earth & Planetary Sciences, Institute of Science Tokyo, 3.Laboratoire de Météorologie Dynamique/IPSL, CNRS, Sorbonne Université, Ecole Normale Supérieure, PSL Research University, Ecole Polytechnique, 4.Laboratoire d'astrophysique de Bordeaux, Univ. Bordeaux, CNRS, B18N, allée Geoffroy Saint-Hilaire, 5.Univ. Grenoble Alpes, CNRS, IPAG)
[PAE18-P15]On the origin and time evolution of the period ratio distribution of super-Earths and sub-Neptunes
*Masahiro Ogihara1, Antoine Petit2, Max Goldberg2 (1.Shanghai Jiao Tong University, 2.Observatoire de la Côte d'Azur)
[PAE18-P16]Search for helium in the atmospheres of small planets around M dwarfs with Subaru/IRD
*Kiyoe Kawauchi1, Norio Narita2,4, Teruyuki Hirano3,4, Akihiko Fukui2, Kai Ikuta2, Takayuki Kotani3,4, Motohide Tamura2,4 (1.Ritsumeikan University, 2.The University of Tokyo, 3.National Astronomical Observatory of Japan, 4.Astrobiology Center)
[PAE18-P17]Atmospheric retention in water-cooled sub-Neptunes
*Tatsuya Yoshida1, Gaidos Eric2 (1.Tohoku University, 2.University of Hawai'i)