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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 17.

VNIR spectra of the two Rantila grain size end-members (slab and <45 μm) plotted against NEA 2015 TC25 and (44) Nysa. The range in slope observed across the samples of Rantila may explain the discrepancy between 2015 TC25 and (44) Nysa (rough NEA surface versus fine-grained main belt surface). In addition, Rantila may be linked with (44) Nysa due to the similar 0.9 μm absorption feature.

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