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El cráter Shoemaker es la fuente de la mayoría de los bloques eyectados en el asteroide 433 Eros
P C Thomas1, J Veverka, M S Robinson
1Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853, USA. thomas@cuspif.astro.cornell.edu
Nature
|September 28, 2001
Resumen
El asteroide 433 Eros es un asteroide.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Procesos de la superficie del asteroide Procesos de la superficie del asteroide
- El cráter de impacto es el cráter de impacto.
Sus antecedentes:
- El regolito de asteroides es principalmente una eyección de impacto.
- La resolución limitada dificulta la identificación de la fuente del cráter y el estudio del regolito.
Objetivo del estudio:
- Para mapear globalmente el asteroide 433 Eros utilizando imágenes de alta resolución.
- Para identificar fuentes de eyección y analizar la modificación del regolito.
Principales métodos:
- Cartografía global del asteroide 433 Eros. también conocido como Eros.
- Análisis de imágenes de alta resolución de la nave espacial NEAR-Shoemaker.
- Aplicación de modelos de reemplazo de eyecciones.
Principales resultados:
- La mayoría de los grandes bloques de eyección de Eros probablemente se originan en un cráter joven de 7,6 km.
- Las eyecciones más viejas parecen enterradas o erosionadas.
- La evidencia sugiere entornos de clasificación post-deposición para las partículas de regolito.
Conclusiones:
- Un reciente gran impacto remodeló significativamente la superficie de Eros.
- Regolith en Eros ha sufrido complejos procesos de modificación.
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