Compositional Changes in Interstellar Comet 3I/ATLAS Across Perihelion

Yoshiharu Shinnaka

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-CG Complex & General

[P-CG25] Formation and Evolution of Materials in the Universe

Fri. May 29, 2026 3:30 PM - 5:00 PM 302 (International Conference Hall, Makuhari Messe)

Chairperson:Ishizaki Lily(University of Tokyo), Okamoto Tamami(Tsung-Dao Lee Institute, Shanghai Jiao Tong University)

3:30 PM - 3:45 PM

[PCG25-07] Compositional Changes in Interstellar Comet 3I/ATLAS Across Perihelion

★Invited Papers

*Yoshiharu Shinnaka¹, Ko Tsujimoto¹, Hideyo KAWAKITA¹, Hitomi Kobayashi^2,1, Takafumi Ootsubo³, Jun-ichi Watanabe⁴ (1. Kyoto Sangyo University, 2. Photocross., Co. Ltd., 3. University of Occupational and Environmental Health, Japan, 4. National Astronomical Society of Japan)

Keywords:interstellar objects, comet volatiles, forbidden oxygen lines, high-resolution spectroscopy, 3I/ATLAS