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Grain Size Effects on UV-MIR Spectra of Aubrites: Clues for Interpreting E-type Near-Earth Asteroids

  • Authors: David C. Cantillo, Neil C. Pearson, Kaycee I. Ridenhour, Vrinda McBride, Miren Miranda, Adam Battle, Thomas Joyce, Juan A. Sanchez, Vishnu Reddy

David C. Cantillo et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 15.

VNIR spectra of the three distinct main belt E-type lithologies (B. E. Clark et al. 2004) plotted against our <45 μm powder of Norton County, whose larger grain sizes best matched 2023 DZ2. Since Norton County has been measured in various grain sizes, it can be used as a compositional bridge between regolith-free NEAs and main belt objects (<45 μm powder). All spectra are set to unity at 1.5 μm.

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