Archive for September 26th, 2024

Progressive change in dislocation microstructures in shocked calcite with pressure: Characterization of micrometeoroid bombardment on asteroid Ryugu

26/09/2024 22:41 · by karmaka · in asteroid, C-type, Hayabusa-2 / 162173 Ryugu, shock metamorphism, surface

Naotaka Tomioka, Kosuke Kurosawa, Akira Miyake, Yohei Igami, Takayoshi Nagaya, Takaaki Noguchi, Toru Matsumoto, Masaaki Miyahara, Yusuke Seto American Mineralogist, September 26, 2024 LINK “Shock recovery experiments were performed using a two-stage light gas gun…

Reconciling remote-sensing estimates of Ryugu’s albedo with laboratory measurementsOPEN ACCESS

26/09/2024 15:19 · by karmaka · in asteroid, C-type, Hayabusa-2 / 162173 Ryugu, organic matter, reflectance spectra, surface

Christian Potiszil, Tsutomu Ota & Eizo Nakamura Nature Astronomy, Published: 26 September 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The Japanese Hayabusa2 spacecraft returned samples from the asteroid Ryugu in December 2020, and several results on…

Phosphorus-rich grains in Ryugu samples with major biochemical potential

26/09/2024 15:13 · by karmaka · in asteroid, C-type, Hayabusa-2 / 162173 Ryugu, organic matter, surface

C. Pilorget, D. Baklouti, J.-P. Bibring, R. Brunetto, M. Ito, I. Franchi, N. Tomioka, M. Uesugi, A. Yamaguchi, R. Greenwood, T. Okada, T. Usui, T. Yada, K. Hatakeda, K. Yogata, D. Loizeau, T. Le Pivert-Jolivet,…

Evidence from 162173 Ryugu for the influence of freeze–thaw on the hydration of asteroidsOPEN ACCESS

26/09/2024 15:08 · by karmaka · in aqueous alteration, asteroid, C-type, Hayabusa-2 / 162173 Ryugu, surface, water

Matthew J. Genge, Natasha V. Almeida, Matthias van Ginneken, Lewis Pinault, Penelope J. Wozniakiewicz & Hajime Yano Nature Astronomy, Published: 26 September 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Hydrated asteroids are likely to be main…

Microscopic slickenside as a record of weak shock metamorphism in the surface layer of asteroid Ryugu

26/09/2024 15:00 · by karmaka · in asteroid, C-type, Hayabusa-2 / 162173 Ryugu, shock metamorphism, surface

Masaaki Miyahara, Takaaki Noguchi, Toru Matsumoto, Naotaka Tomioka, Akira Miyake, Yohei Igami, Yusuke Seto, Mitsutaka Haruta, Hikaru Saito, Satoshi Hata, Hope A. Ishii, John P. Bradley, Kenta K. Ohtaki, Elena Dobrică, Hugues Leroux, Corentin Le…

Effects of hot desert weathering on highly siderophile elements in ordinary chondritesOPEN ACCESS

26/09/2024 14:58 · by karmaka · in ordinary chondrite, terrestrial weathering, Viñales, witnessed fall

Kiran Shahood Almas, Richard D. Ash, Richard J. Walker MAPS, Version of Record online: 25 September 2024 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Over 20,000 meteorites have been recovered from hot deserts. The effects of hot…