[P-AE22] Exoplanets

Thu. May 28, 2026 9:00 AM - 10:30 AM 301B (International Conference Hall, Makuhari Messe)

Chairperson:Kawashima Yui(Kyoto University), Notsu Shota(Earth and Planetary System Science Group, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

As the number of confirmed exoplanets surpasses 6,000, it is becoming increasingly clear that planetary systems display an extraordinary diversity, often starkly different from our own Solar System. We are now entering a transformative era in which the full breadth of planetary architectures and atmospheric composition is gradually coming into view.
The JWST has opened a new window into exoplanetary atmospheres, providing unprecedented insights into their chemical and physical properties. Looking ahead, upcoming missions and facilities such as Ariel, TMT, ELT, and HWO will further deepen our understanding of planetary diversity.
Exoplanetary science is becoming not only a distinct branch of astronomy but also of Earth-Planetary Science. To advance this field, we must engage in comprehensive discussions from a variety of scientific backgrounds, such as stellar physics, disk evolution, planetary formation, climate, and chemistry.
This session aims to bring together researchers from diverse scientific backgrounds to share recent results, highlight the status of ongoing and upcoming exoplanet missions, and promote cross-disciplinary discussions. We welcome contributions from all related fields to deepen our collective understanding of exoplanetary systems.

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9:00 AM - 9:15 AM

[PAE22-01] Knowing Stars, Knowing Planets: New Constraints on Exoplanet Host Stars from HST, JWST, and Pandora

★Invited Papers

*Benjamin Rackham¹ (1. Massachusetts Institute of Technology)

9:15 AM - 9:30 AM

[PAE22-02] Synergetic Spot Mapping via Simultaneous Doppler Imaging and TESS photometry

*Sanghee Lee¹, Engin Bahar², Hakan Volkan Senavci², Emre Isik³, Kai Ikuta⁴, Kosuke Namekata^1,10,5, Haruhi Nagata⁶, Kiyoe Kawauchi⁷, Masashi Omiya^11,5, Hideyuki Izumiura⁸, Akito Tajitsu⁸, Bun'ei Sato⁹, Satoshi Honda⁶, Daisaku Nogami¹ (1. Kyoto University, 2. Ankara University, 3. Max-Planck-Institut für Sonnensystemforschung, 4. Hitotsubashi University, 5. National Astronomical Observatory of Japan, 6. University of Hyogo, 7. Ritsumeikan University, 8. Okayama Branch Office, Subaru Telescope, National Astronomical Observatory of Japan, 9. Institute of Science Tokyo, 10. NASA Goddard Space Flight Center, 11. Astrobiology Center)

9:30 AM - 9:45 AM

[PAE22-03] Validation for the infant sub-Saturn: TOI5973b

*Toshi Suganuma¹, Jerome de Leon², Norio Narita², Akihiko Fukui², Motohide Tamura⁴, Masahiro Ikoma³, Enric Palle⁵, Eric Gaidos⁶, MuSCAT team, MuSCAT2 team, TESS team, SG3 team, MAROON-X team (1. Graduate School of Arts and Sciences, The University of Tokyo, 2. Komaba Institute for Science, The University of Tokyo, 3. Division of Science, National Astronomical Observatory of Japan, 4. Department of Astronomy, School of Science, The University of Tokyo, 5. Institute de Astrofisica de Canarias, 6. Department of Earth Science, University of Hawaii)

9:45 AM - 10:00 AM

[PAE22-04] Inferring the Internal Structure of an Ultra-hot Jupiter from Its Eccentric, Possibly Precessing Orbit

*Yugo Kawai¹, Akihiko Fukui¹, Norio Narita¹, Ichi Tanaka² (1. The University of Tokyo, 2. National Astronomical Observatory of Japan)

10:00 AM - 10:15 AM

[PAE22-05] Emission spectroscopy of a hot Jupiter KELT-2A b

*Yuya Hayashi¹, Stevanus Nugroho^2,3,4, Shota Notsu¹, Peter Smith⁸, Krishna Kanumalla⁸, Tomohiro Yoshida⁴, Michael Line⁸, Changeat Quentin⁶, Kazumasa Ohno⁴, Hideko Nomura⁴, Taiki Kagetani^1,4, Norio Narita¹, Kiyoe Kawauchi⁵, Enric Palle⁷ (1. the University of Tokyo, 2. Science Tokyo, 3. AstroBiology Center, 4. National Astronomical Observatory of Japan, 5. Ritsumeikan University, 6. Groningen University, 7. Instituto Astrofisica de Canarias, 8. Arizona State University)

10:15 AM - 10:30 AM

[PAE22-06] Atmospheric constraint of a warm Neptune AU Mic b using high resolution spectroscopy

*Kosei Usami¹, Teruyuki Hirano¹, Stevanus Kristianto Nugroho² (1. Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI/National Astronomical Observatory of Japan/Astrobiology Center, 2. Science Tokyo/Astrobiology Center)

Session information