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La ruptura de un asteroide del cinturón principal hace 450 mil años
David Nesvorný1, David Vokrouhlický, William F Bottke
1Department of Space Studies, Southwest Research Institute, 1050 Walnut Street, Suite 400, Boulder, CO 80302, USA. davidn@boulder.swri.edu
Science (New York, N.Y.)
|June 10, 2006
Resumen
Los impactos en el cinturón de asteroides crean familias de asteroides. Los investigadores descubrieron una familia de asteroides muy joven alrededor de 1270 Datura utilizando datos de elementos orbitales, revelando eventos recientes de ruptura de asteroides.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Ciencias planetarias Ciencias planetarias.
- Pequeños cuerpos del Sistema Solar pequeños cuerpos del Sistema Solar.
Sus antecedentes:
- Las colisiones de asteroides pueden causar rupturas catastróficas, expulsando una masa significativa.
- Estas rupturas forman familias de asteroides, grupos de fragmentos con órbitas similares.
- Varias docenas de grandes asteroides han sido interrumpidos durante miles de millones de años.
Objetivo del estudio:
- Para informar sobre el descubrimiento de una familia de asteroides muy joven.
- Para identificar eventos recientes de impacto en el cinturón de asteroides.
Principales métodos:
- Utilizó un método para identificar rupturas recientes del cinturón de asteroides.
- Catálogos analizados de las órbitas osculadas (instantáneas) de los asteroides.
- Identificó familias jóvenes como grupos en un espacio de cinco dimensiones de elementos orbitales.
Principales resultados:
- Descubrió una familia de asteroides muy joven asociada con el objeto 1270 Datura.
- Demostró la efectividad del método de catálogo de elementos orbitales para detectar rupturas recientes.
- Se ha confirmado que las familias de asteroides jóvenes aparecen como grupos distintos en el espacio de los elementos orbitales.
Conclusiones:
- El descubrimiento de la familia Datura 1270 proporciona evidencia de las recientes rupturas catastróficas de asteroides.
- El método empleado es eficaz para identificar familias de asteroides recientemente formadas.
- Esta investigación contribuye a comprender los procesos dinámicos en curso en el cinturón de asteroides.
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