[K-5] Small Body Explorations - Hayabusa2 and MMX

[2022-k-20] Crack Orientation of Boulders on Ryugu: Meridional Preference and Exfoliation

*Sho Sasaki¹, Shiho Kanda¹, Hiroshi Kikuchi², Tatsuhiro Michikami³, Tomokatsu Morota⁴, Chikatoshi Honda⁵, Hideaki Miyamoto⁴, Ryodo Henmi⁴, Seiji Suguta⁴, Eri Tatsumi⁴, Masanori Kanamaru², Seiichiro Watanabe⁶, Noriyuki Namiki⁷, Patrik Michel⁸, Masatoshi Hirabayashi⁹, Naru Hirata⁵, Tomoki Nakamura¹⁰, Takaaki Noguchi¹¹, Takahiro Hiroi¹², Naoya Sakatani¹³ (1. Osaka University, Department of Earth and Space Science, 2. JAXA, ISAS, 3. Kindai University, 4. University of Tokyo, 5. University of Aizu, 6. Nagoya University , 7. National Astronomical Observatory of Japan, 8. Observatoire de la Cote d'Azur, 9. Auburn University, 10. Tohoku University, 11. Kyoto University, 12. Brown University, 13. Rikkyo University)

キーワード：Ryugu, crack orientation, thermal stress, boulder exfoliation, meridional crack