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La mayoría de los meteoritos comunes encuentran un hogar entre los asteroides
Science (New York, N.Y.)
|September 11, 2007
Resumen
Los investigadores descubrieron que el asteroide tipo S Eros, orbitado por la nave espacial NEAR Shoemaker, comparte la misma composición elemental que las condritas ordinarias. Este hallazgo puede resolver el viejo rompecabezas de los orígenes de los meteoritos.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Cosmoquímica es la cosmoquímica.
- La meteorología es meteorítica.
Sus antecedentes:
- Las condritas ordinarias son el tipo más común de meteorito que se encuentra en la Tierra.
- Los asteroides tipo S son el tipo más común de asteroides en el sistema solar interior.
- Un rompecabezas de larga data en la meteorítica es el aparente desajuste entre la composición de las condritas ordinarias y los asteroides de tipo S.
Objetivo del estudio:
- Para investigar la composición elemental del asteroide tipo S Eros.
- Para determinar si Eros tiene la misma composición que las condritas ordinarias.
- Para abordar la discrepancia entre los tipos comunes de meteoritos y los tipos comunes de asteroides.
Principales métodos:
- Análisis de la composición elemental utilizando datos de la nave espacial NEAR Shoemaker.
- Mediciones orbitales y in situ del asteroide Eros.
Principales resultados:
- El análisis de la nave espacial NEAR Shoemaker reveló que el asteroide Eros está compuesto de los mismos materiales que las condritas ordinarias.
- Esto marca el primer análisis de composición elemental de un asteroide realizado por una nave espacial.
Conclusiones:
- El asteroide tipo S Eros es una fuente potencial para meteoritos de condritas ordinarios.
- Este hallazgo ayuda a resolver el viejo rompecabezas sobre el origen de los meteoritos comunes.
- El análisis elemental basado en naves espaciales proporciona datos cruciales para comprender la formación y evolución del sistema solar.
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