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Una población de cometas en el cinturón principal de asteroides
1Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA. hsieh@ifa.hawaii.edu
Science (New York, N.Y.)
|March 25, 2006
Resumen
Descubriendo una nueva población de cometas del cinturón principal de asteroides, estos cuerpos celestes pueden haberse formado in situ y podrían ser una fuente significativa de agua de la Tierra.
Área de la Ciencia:
- La astronomía es la astronomía.
- Ciencias planetarias Ciencias planetarias.
- Ciencia de los Cometas Ciencia de los Cometas
Sus antecedentes:
- Los cometas se originan en dos depósitos conocidos: el Cinturón de Kuiper y la Nube de Oort.
- Estos cuerpos helados se activan y subliman a medida que se acercan al Sol.
- Los modelos actuales sitúan el Cinturón de Kuiper a ~40 Kelvin y la Nube de Oort a ~10 Kelvin.
Objetivo del estudio:
- Para investigar el origen de una población distinta de cometas.
- Para presentar evidencia de un tercer reservorio cometario: el cinturón principal de asteroides.
- Explorar los mecanismos de formación y activación de estos cometas del cinturón principal.
Principales métodos:
- Análisis de datos ópticos. análisis de datos ópticos.
- Observación y caracterización de la actividad cometaria.
- Comparación con las propiedades conocidas de los cometas del Cinturón de Kuiper y la Nube de Oort.
Principales resultados:
- Identificación de una población de cometas originarios del cinturón principal de asteroides.
- Estos cometas del cinturón principal difieren de los del Cinturón de Kuiper y la Nube de Oort.
- La evidencia sugiere que los cometas del cinturón principal se formaron en su ubicación actual y pueden ser activados por colisión.
Conclusiones:
- El cinturón principal de asteroides representa un tercer reservorio no reconocido previamente para los cometas.
- Los cometas del cinturón principal ofrecen una nueva perspectiva sobre la formación y evolución del sistema solar.
- Estos hallazgos apoyan la hipótesis de que los objetos del cinturón principal podrían ser una fuente primaria de agua terrestre.
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