Nature Communications (Jan 2022)

Mid-infrared emissivity of partially dehydrated asteroid (162173) Ryugu shows strong signs of aqueous alteration

  • M. Hamm,
  • M. Grott,
  • H. Senshu,
  • J. Knollenberg,
  • J. de Wiljes,
  • V. E. Hamilton,
  • F. Scholten,
  • K. D. Matz,
  • H. Bates,
  • A. Maturilli,
  • Y. Shimaki,
  • N. Sakatani,
  • W. Neumann,
  • T. Okada,
  • F. Preusker,
  • S. Elgner,
  • J. Helbert,
  • E. Kührt,
  • T.-M. Ho,
  • S. Tanaka,
  • R. Jaumann,
  • S. Sugita

DOI
https://doi.org/10.1038/s41467-022-28051-y
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 12

Abstract

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Spectral characteristics can be used to link asteroid and meteorite materials. Here, the authors show in-situ mid-infrared data of a boulder on asteroid Ryugu, compared with laboratory spectra of various meteorites, indicate that Ryugu experienced strong aqueous alteration prior to dehydration.