The resurfacing process on Ryugu accompanying the artificial impact crater formation by Hayabusa2's Small Carry-on Impactor (SCI) was studied by comparing pre- and post-impact images of this region captured by an optical navigation camera. Three d...
K. Kitazato R. E. Milliken T. Iwata M. Abe M. Ohtake S. Matsuura Y. Takagi T. Nakamura T. Hiroi M. Matsuoka L. Riu Y. Nakauchi K. Tsumura T. Arai H. Senshu N. Hirata M. A. Barucci R. Brunetto C. Pilorget F. Poulet J. P. Bibring D. L. Domingue F. Vilas D. Takir E. Palomba A. Galiano D. Perna T. Osawa M. Komatsu A. Nakato T. Arai N. Takato T. Matsunaga M. Arakawa T. Saiki K. Wada T. Kadono H. Imamura H. Yano K. Shirai M. Hayakawa C. Okamoto H. Sawada K. Ogawa Y. Iijima S. Sugita R. Honda T. Morota S. Kameda E. Tatsumi Y. Cho K. Yoshioka Y. Yokota N. Sakatani M. Yamada T. Kouyama H. Suzuki C. Honda N. Namiki T. Mizuno K. Matsumoto H. Noda Y. Ishihara R. Yamada K. Yamamoto F. Yoshida S. Abe A. Higuchi Y. Yamamoto T. Okada Y. Shimaki R. Noguchi A. Miura N. Hirata S. Tachibana H. Yabuta M. Ishiguro H. Ikeda H. Takeuchi T. Shimada O. Mori S. Hosoda R. Tsukizaki S. Soldini M. Ozaki F. Terui N. Ogawa Y. Mimasu G. Ono K. Yoshikawa C. Hirose A. Fujii T. Takahashi S. Kikuchi Y. Takei T. Yamaguchi S. Nakazawa S. Tanaka M. Yoshikawa S. Watanabe
Nature Astronomy 5(3) 246-250 2021年3月
Analyses of meteorites and theoretical models indicate that some carbonaceous near-Earth asteroids may have been thermally altered due to radiative heating during close approaches to the Sun1–3. However, the lack of direct measurements on the subs...
K. Wada K. Ishibashi H. Kimura M. Arakawa H. Sawada K. Ogawa K. Shirai R. Honda Y. Iijima T. Kadono N. Sakatani Y. Mimasu T. Toda Y. Shimaki S. Nakazawa H. Hayakawa T. Saiki Y. Takagi H. Imamura C. Okamoto M. Hayakawa N. Hirata H. Yano
Astronomy and Astrophysics 647 2021年3月
A projectile accelerated by the Hayabusa2 Small Carry-on Impactor successfully produced an artificial impact crater with a final apparent diameter of 14.5 ± 0.8 m on the surface of the near-Earth asteroid 162173 Ryugu on April 5, 2019. At the time...
F. Foucher K. Hickman-Lewis A. Hutzler K. H. Joy L. Folco J. C. Bridges P. Wozniakiewicz J. Martínez-Frías V. Debaille M. Zolensky H. Yano N. Bost L. Ferrière M. Lee J. Michalski H. Schroeven-Deceuninck G. Kminek M. Viso S. Russell C. Smith J. Zipfel F. Westall
Planetary and Space Science 197 2021年3月
The practical limitations inherent to human and robotic planetary exploration necessitate the development of specific protocols and methods. This non-standard approach requires testing and validation phases in order to optimise instrumental setups...
G. Nishiyama T. Kawamura N. Namiki B. Fernando K. Leng K. Onodera S. Sugita T. Saiki H. Imamura Y. Takagi H. Yano M. Hayakawa C. Okamoto H. Sawada Y. Tsuda K. Ogawa S. Nakazawa Y. Iijima
Journal of Geophysical Research: Planets 126(2) 2021年2月
Seismic shaking has been regarded as an essential source of resurfacing on asteroids. The Small Carry-on Impactor (SCI) operation on Hayabusa2 has been expected to be a unique opportunity for testing in situ seismic shaking whose energy is suffici...
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