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Sodium-rich Particle as Evidence of Recent and Intense Micrometeoroid Bombardment on Asteroid Ryugu

  • Authors: E. Palomba, G. Pratesi, M. Angrisani, X. Shehaj, F. Dirri, A. Longobardo, D. Fulvio, S. Caporali, B. Cortigiani

E. Palomba et al 2026 The Astrophysical Journal Letters 1001 .

  • Provider: AAS Journals

Caption: Figure A2.

Electron microscope images of frothy surfaces and impact-melt structures on the surface of A0226. (a), (b) Representative frothy surface textures in secondary electron (SE) mode. (c)–(e) Impact-melt deposits with varying sizes and morphologies in SE mode. (f) Melt splash deposits associated with a weathered pyrrhotite grain in backscattered electron (BSE) mode.

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