Masahiro Ikoma

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Speaker, Author, Co-Author

Mon. May 22, 2023 3:30 PM - 4:45 PM Exhibition Hall Special Setting (3) (Exhibition Hall 8, Makuhari Messe)

[J] Oral
| P (Space and Planetary Sciences )
| P-PS Planetary Sciences

[P-PS07] Planetary Sciences

4:00 PM - 4:15 PM

[PPS07-18] Semi-analytical model for collisional evolution of multiple protoplanet system

*Tadahiro Kimura¹, Haruka Hoshino¹, Eiichiro Kokubo², Masahiro Ikoma² (1.The University of Tokyo, 2.Division of Science, National Astronomical Observatory of Japan)

Wed. May 24, 2023 3:30 PM - 5:00 PM 102 (International Conference Hall, Makuhari Messe)

[E] Oral
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM11] Exoplanet

3:30 PM - 3:45 PM

[PEM11-17] Life-environmentology, Astronomy, and PlanetarY Ultraviolet Telescope Assembly (LAPYUTA)

*Fuminori Tsuchiya¹, Go Murakami², Atsushi Yamazaki², Shingo Kameda³, Akifumi Nakayama³, Masahiro Ikoma⁴, Masaki Kuwabara³, Norio Narita⁵, Takanori Kodama⁵, Naoki Terada¹, Shin Toriumi², Yuta Notsu^10,11, Kosuke Namekata⁴, Tomoki Kimura⁶, Chihiro Tao⁷, Ryoichi Koga⁸, Jun Kimura⁹, Masami Ouchi^5,4, Masaomi Tanaka¹, Kei Masunaga², Shotaro Sakai¹, Kazuo Yoshioka⁵, Masato Kagitani¹, Keigo Enya² (1.Tohoku University, 2.ISAS/JAXA, 3.Rikkyo University, 4.NAOJ, 5.The University of Tokyo, 6.Tokyo University of Science, 7.NICT, 8.Nagoya University, 9.Osaka University, 10.Tokyo Institute of Tech., 11.Colorado University)

Thu. May 25, 2023 1:45 PM - 3:15 PM Online Poster Zoom Room (2) (Online Poster)

[E] Online Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM11] Exoplanet

1:45 PM - 3:15 PM

[PEM11-P03] Oxygen airglow of Earth-like exoplanets around active low-mass stars

*Akifumi Nakayama¹, Kiyoe Kawauchi², Shingo Kameda¹, Naoki Terada³, Masahiro Ikoma⁴ (1.Rikkyo University, 2.The University of Tokyo, 3.Tohoku University , 4.National Astronomical Observatory of Japan)

1:45 PM - 3:15 PM

[PEM11-P04] Simulation of Exoplanetary Oxygen Exospheres for Ultraviolet Transit Observation

*Mao Kishida¹, Akifumi Nakayama¹, Kento Hirabayashi¹, Masaki Kuwabara¹, Takanori Kodama², Go Murakami³, Norio Narita², Shingo Kameda^1,3, Masahiro Ikoma⁴, Naoki Terada⁵, Keigo Enya³ (1.Rikkyo University, 2.The University of Tokyo, 3.JAXA, 4.NAOJ, 5.Tohoku University)

1:45 PM - 3:15 PM

[PEM11-P09] Discovery of an Ultra-short Period, Ultra-cool Dwarf around an M dwarf

*Akihiko Fukui¹, Teruyuki Hirano², Norio Narita¹, Takeru K. Suzuki¹, Takato Tokuno¹, Masahiro Ikoma³, The MuSCAT team, The IRD Intensive team, The IRD instrument team (1.The University of Tokyo, 2.Astrobiology Center, 3.National Astronomical Observatory of Japan)

1:45 PM - 3:15 PM

[PEM11-P11] Results of TESS follow-up observations produced by the MuSCAT series and the IRD intensive follow-up project

*Norio Narita^1,2, Akihiko Fukui¹, Teruyuki Hirano^2,3, Masahiro Ikoma^1,3, Takayuki Kotani^2,3,4, Motohide Tamura^1,2,3, MuSCAT team, IRD intensive team, IRD instrument team (1.The University of Tokyo, 2.Astrobiology Center, 3.National Astronomical Observatory of Japan, 4.SOKENDAI)

1:45 PM - 3:15 PM

[PEM11-P12] Characterization of transiting sub-Neptune and outer giant planet candidate around mid-M dwarf TOI-654

*Kai Ikuta¹, Norio Narita^1,2, Takuya Takarada^2,3, Teruyuki Hirano^2,3, Akihiko Fukui¹, Takanori Kodama¹, Tadahiro Kimura¹, Yasunori Hori^2,3, Masahiro Ikoma^1,3, Takayuki Kotani^2,3, Motohide Tamura^1,2, IRD Intensive team, IRD Instrument team, MuSCAT team (1.The University of Tokyo, 2.Astrobiology Center, 3.National Astronomical Observatory of Japan)

1:45 PM - 3:15 PM

[PEM11-P17] Ariel mission: possible science cases for low-gravity exoplanets

*Masahiro Ikoma¹ (1.Division of Science, National Astronomical Observatory of Japan)