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Observaciones de nubes eyectadas producidas por impactos en los anillos de Saturno
Matthew S Tiscareno1, Colin J Mitchell, Carl D Murray
1Center for Radiophysics and Space Research, Cornell University, Ithaca, NY 14853, USA. matthewt@astro.cornell.edu
Science (New York, N.Y.)
|April 27, 2013
Resumen
Los impactos en los anillos de Saturno crean nubes de polvo. Estas nubes probablemente son el resultado de las corrientes de meteoroides, no de impactos individuales, con meteoroides que varían de 1 cm a varios metros de tamaño.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- Dinámica del anillo Dinámica del anillo
Sus antecedentes:
- Los anillos de Saturno son entornos dinámicos.
- Comprender los procesos de impacto es crucial para la evolución de los anillos.
Objetivo del estudio:
- Para investigar el origen de las nubes de polvo observadas en los anillos de Saturno.
- Para determinar la naturaleza y el tamaño de los cuerpos de impacto.
Principales métodos:
- Observación de nubes de polvo en los anillos de Saturno.
- Análisis del brillo de las nubes y evolución del ángulo de inclinación.
- Modelado de escenarios de impacto.
Principales resultados:
- Se observaron nubes de polvo, que se formaron de 1 a 50 horas después de los impactos inferidos.
- La evolución de las nubes es consistente con los impactos de las corrientes de meteoritos.
- Se estimó que los meteoroides responsables tenían entre 1 cm y varios metros de tamaño.
Conclusiones:
- Los impactos de flujos compactos de material en órbita alrededor de Saturno, no de meteoritos individuales, generan estas nubes de polvo.
- La tasa de afluencia de estos meteoroides se alinea con los datos existentes para el sistema solar exterior.
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