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Impacto profundo: excavando el cometa Tempel 1 1
M F A'Hearn1, M J S Belton, W A Delamere
1University of Maryland, College Park, MD 20742, USA. ma@astro.umd.edu
Science (New York, N.Y.)
|September 10, 2005
Resumen
La misión Deep Impact reveló el cometa Tempel 1 1.
Área de la Ciencia:
- Ciencia de la ciencia de los cometas.
- Física de los impactos en la física de impacto.
- Geología planetaria y geología planetaria.
Sus antecedentes:
- Los cometas son restos del sistema solar temprano.
- Comprender la composición y la estructura de los cometas es crucial.
- La misión Deep Impact tenía como objetivo estudiar el interior de los cometas.
Objetivo del estudio:
- Para analizar la composición y estructura del interior del cometa Tempel 1.
- Para investigar los efectos de un impacto de alta velocidad en el núcleo de un cometa.
- Para caracterizar la pluma de eyección y sus constituyentes.
Principales métodos:
- La nave espacial Deep Impact impactó intencionalmente con el cometa Tempel 1.
- Se utilizaron imágenes de alta resolución y espectroscopia para observar el impacto.
- El análisis de la pluma de eyección proporcionó datos sobre la composición y la temperatura.
Principales resultados:
- La capa externa del cometa Tempel 1 se compone de partículas finas y de baja resistencia.
- El impacto excavó un cráter controlado por la gravedad.
- Las eyecciones iniciales eran extremadamente calientes, y el material orgánico aumentó significativamente después del impacto.
Conclusiones:
- Los núcleos de los cometas tienen una capa externa de partículas de baja fuerza.
- Los eventos de impacto pueden revelar la composición del subsuelo y desencadenar cambios químicos.
- El estudio proporcionó información sobre la evolución y composición de los cometas.
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