3 papers
astro-ph.EP2025
Catastrophic disruption of asteroid 2023 CX1 and implications for planetary defense
Auriane Egal, Denis Vida, François Colas +94
Mitigation of the threat from airbursting asteroids requires an understanding of the potential risk they pose for the ground. How asteroids release their kinetic energy in the atmo…
astro-ph.EP2025
Orbit, meteoroid size, and cosmic ray exposure history of the Aguas Zarcas CM2 breccia
Peter Jenniskens, Gerardo J. Soto, Gabriel Goncalves Silva +21
The Aguas Zarcas (Costa Rica) CM2 carbonaceous chondrite fell during night time in April 2019. Security and dashboard camera video of the meteor were analyzed to provide a trajecto…
astro-ph.EP2025
The Elemental Abundances of Ryugu: Assessment of Chemical Heterogeneities and the Nugget Effect
Tetsuya Yokoyama, Nicolas Dauphas, Ryota Fukai +6
The Hayabusa 2 spacecraft sampled ~5.4 g of asteroid material from the Cb-type asteroid Ryugu. Initial analysis of the Ryugu materials revealed a mineralogical, chemical, and isoto…