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Una reciente perturbación del asteroide P/2010 A2 del cinturón principal
David Jewitt1, Harold Weaver, Jessica Agarwal
1Department of Earth and Space Sciences, 3713 Geology Building, UCLA, 595 Charles Young Drive East, California 90095, USA. jewitt@ucla.edu
Nature
|October 15, 2010
Resumen
El asteroide P/2010 A2, un cuerpo rocoso primitivo, probablemente fue el resultado de un evento de perturbación reciente. Las observaciones revelan un núcleo y una cola de polvo, proporcionando una rara evidencia de la dinámica de colisión de asteroides.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Ciencias planetarias Ciencias planetarias.
Sus antecedentes:
- Los asteroides del cinturón principal interno son cuerpos primitivos.
- La ruptura de asteroides es un proceso clave para la evolución de cuerpos pequeños y la producción de polvo.
Objetivo del estudio:
- Para investigar la naturaleza y el origen del inusual asteroide interior del cinturón principal P/2010 A2.
- Para proporcionar evidencia directa de los eventos de perturbación de asteroides.
Principales métodos:
- La astronomía observacional es la astronomía de las observaciones.
- Análisis morfológico del asteroide P/2010 A2
- Análisis de partículas de polvo.
Principales resultados:
- P/2010 A2 exhibe una morfología similar a la de un cometa con un núcleo y una cola de polvo.
- El diámetro del núcleo es de aproximadamente 120 metros.
- Las características observadas son consistentes con un reciente evento de interrupción en febrero/marzo de 2009.
Conclusiones:
- P/2010 A2 es probablemente el remanente de una reciente perturbación de asteroides.
- La lenta evolución del remanente está influenciada por la presión de la radiación solar.
- Este hallazgo ofrece una rara evidencia directa de los mecanismos de interrupción de asteroides.
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