Space and Planetary Sciences (P)
Session Sub-category Astronomy & Extrasolar Bodies(AE)
Session ID P-AE18
Title Exoplanets
Short Title Exoplanets
Main Convener Name Takanori Kodama
Affiliation Earth-Life Science Institute, Institute of Science Tokyo
Co-Convener 1 Name Yui Kawashima
Affiliation Kyoto University
Co-Convener 2 Name Shota Notsu
Affiliation Earth and Planetary System Science Group, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
Co-Convener 3 Name Mayuko Mori
Affiliation Astrobiology Center
Session Language 
E
Scope 
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.
Presentation Format Oral and Poster presentation
Invited Authors Quentin Changeat (University of Groningen)
Tadahiro Kimura (UTokyo Organization for Planetary Science)
Adam Yassin Jaziri (LATMOS/IPSL, UVSQ Universite Paris-Saclay, Sorbonne Universite, CNRS, Guyancourt, France.)
Time Presentation No Title Presenter
Oral Presentation May 30 AM1
9:00 - 9:15 PAE18-01 A Possible Metal-dominated Atmosphere below the Thick Aerosols of GJ 1214 b Suggested by Its JWST Panchromatic Transmission Spectrum Kazumasa Ohno
9:15 - 9:30 PAE18-02 MIRI-LRS spectrum of a cold exoplanet around a white dwarf: water, ammonia, and methane measurements. Mael Milan Voyer
9:30 - 9:45 PAE18-03 Empirical transit spectra of Mars Shohei Aoki
9:45 - 10:00 PAE18-04 Characterization of upper atmospheres of hot exoplanets by multi-line observations
and complex numerical simulations 		Ildar Shaikhislamov
10:00 - 10:15 PAE18-05 CONSTRAINING MAGNETIC FIELD OF EXOPLANETS BY RESOVING FINE STRUCTURE OF MULTIPLET LINES Marina Rumenskikh
10:15 - 10:30 PAE18-06 Study of exoplanet atmospheres with next-gen space observatories (JWST, Ariel) Quentin Changeat
Oral Presentation May 30 AM2
10:45 - 11:00 PAE18-07 The Transmission Spectrum of KELT-20b with HDS/Subaru and GRACES/Gemini-N: New Detections and the Fe I Double-Peak Mystery Stevanus Kristianto Nugroho
11:00 - 11:15 PAE18-08 Identifying hot Jupiters that arrived via disk migration Yugo Kawai
11:15 - 11:30 PAE18-09 Methods and results of low-frequency beamformed exoplanet detection studies
with NenuFAR 		Corentin Kenelm Louis
11:30 - 11:45 PAE18-10 Telluric Correction with Forward Modeling for Exoplanet Atmosphere Characterization using High-resolution Spectroscopy Sayyed Ali Rafi
11:45 - 12:00 PAE18-11 Validation of High-Resolution Spectral Analysis for Brown Dwarfs Using Luhman16 AB Hibiki Yama
12:00 - 12:15 PAE18-12 A New Approach to Planetary Microlensing Light Curve Analysis: Addressing Time-Correlated Noise with Gaussian Processes Kanuke Nunota
Oral Presentation May 30 PM1
13:45 - 14:00 PAE18-13 Snow line migration in protoplanetary disks with various central stars and heating mechanisms: Implications for the water content of habitable planets Katsushi Kondo
14:00 - 14:15 PAE18-14 Orbital instabilities in compact planetary systems Gabriel Teixeira Guimaraes
14:15 - 14:30 PAE18-15 Validation of an Eccentric Hot Jupiter Transiting the Edge of a Mid-A-type star TOI-1355 Noriharu Watanabe
14:30 - 14:45 PAE18-16 Impact erosion mechanism explaining the radius gap in sub-Neptunes through high-speed collisions with planetary embryos Yaxing He
14:45 - 15:00 PAE18-17 Constraints on early atmospheric evolution from the dynamical architecture of the TRAPPIST-1 system Wenzhan Ouyang
15:00 - 15:15 PAE18-18 Formation of super-Earths: effects of water enrichment and partitioning Tadahiro Kimura
Oral Presentation May 30 PM2
15:30 - 15:45 PAE18-19 Exploring atmospheric chemistry with 3D models: from ultra hot Jupiters to terrestrial planets. Adam Yassin Jaziri
15:45 - 16:00 PAE18-20 Climate and Water Loss of Terrestrial Planets with Variable Atmospheric Carbon Species and Host Stars Jared Brack Landry
16:00 - 16:15 PAE18-21 Simulation of the day/night water cycle on Trappist-1e using a global climate and hydrological model Arihiro Kamada
16:15 - 16:30 PAE18-22 Simulating the effects of salinity on ocean planet climates with 3D AOGCM Keigo Taniguchi
16:30 - 16:45 PAE18-23 The atmospheric particle simulations for observations of the upper atmosphere of terrestrial exoplanets by ultraviolet transit spectroscopy Kato Ryuga
16:45 - 17:00 PAE18-24 Extrasolar planets in habitable zones explored with the Thirty Meter Telescope (TMT) Aoki Wako
Presentation No Title Presenter
Poster Presentation May 30 PM3
PAE18-P01 Understanding the Structure and Starspot of the TOI-3884 System through Spot-Crossing Transits Mayuko Mori
PAE18-P02 Development of Analytical Model Generalized for Exoplanetary Auroral Radio Emission Asa Satyagraha
PAE18-P03 Estimation of Auroral Currents in Ultracool Dwarf Based on Magnetospheric 3D Global Magnetohydrodynamic Simulations Ryota Hara
PAE18-P04 Constraining the XUV irradiation and H/He ratios of short-period exoplanets using escaping H and He absorption lines Toshi Suganuma
PAE18-P05 Starspot mapping and multiwavelength variability for a young solar-type star Kai Ikuta
PAE18-P06 Impact of Ionizing Radiation on exoplanetary habitability induced by Solar and Stellar Energetic Particles Yosuke Alexandre Yamashiki
PAE18-P07 Climate of a tidally locked exo-terrestrial planet with NICAM Takanori Kodama
PAE18-P08 Heavy element enrichment in protoplanetary disks and gas giants
with disk surface accretion 		Yoshitaka Ikeda
PAE18-P09 The origin of the exoplanet radius valley: the effects of photoevaporation and degassing on atmospheric composition Junta Saito
PAE18-P10 Development of a New Retrieval Framework for Characterizing Magma Oceans on Sub-Neptunes Yuichi Ito
PAE18-P11 Sulfur Cycle on Earth-like Exoplanets: Dependency on Host Stars and Surface Water Environments, and Implications for Constraining Habitability Kaito Yoshida
PAE18-P12 Planetary sciences expected by the next-generation infrared astronomical satellite GREX-PLUS - Progress report 2025 Shota Notsu
PAE18-P13 A Study for Unveiling Planetary Evolution with Young Transiting Exoplanets Norio Narita
PAE18-P14 Tracking process of atmospheric collapse: new scheme for multi-species condensation Keigo Taniguchi
PAE18-P15 On the origin and time evolution of the period ratio distribution of super-Earths and sub-Neptunes Masahiro Ogihara
PAE18-P16 Search for helium in the atmospheres of small planets around M dwarfs with Subaru/IRD Kiyoe Kawauchi
PAE18-P17 Atmospheric retention in water-cooled sub-Neptunes Tatsuya Yoshida