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Región polar activa en el núcleo del cometa Halley
Science (New York, N.Y.)
|January 13, 1989
Resumen
Las imágenes de la nave espacial Giotto muestran una región activa única y brillante cerca del polo de rotación del cometa Halley. El calentamiento solar continuo probablemente explica esta distinta actividad polar en el núcleo del cometa.
Área de la Ciencia:
- Ciencia de la ciencia de los cometas.
- La exploración del sistema solar es la exploración del sistema solar.
- La física espacial es la física del espacio.
Sus antecedentes:
- La nave espacial Giotto proporcionó imágenes en primer plano sin precedentes del núcleo del cometa Halley.
- Los núcleos de los cometas exhiben diversas características superficiales y niveles de actividad.
Objetivo del estudio:
- Para analizar las características de las regiones activas en el núcleo del cometa Halley.
- Para investigar la causa de una región activa particularmente grande y brillante cerca del polo de rotación.
Principales métodos:
- Análisis de datos de imágenes del encuentro de la nave espacial Giotto con el cometa Halley.
- Correlación de la ubicación de la región activa con las condiciones de iluminación solar.
Principales resultados:
- Identificación de múltiples regiones activas en el núcleo del cometa Halley.
- Descubrimiento de una prominente y brillante región activa situada cerca del polo de rotación del núcleo.
- Observación de que esta región polar experimentó una insolación solar circumpolar prolongada.
Conclusiones:
- Las características distintivas de la región polar activa sugieren un mecanismo de formación o actividad único.
- El calentamiento solar continuo debido a la exposición al sol circumpolar se propone como el conductor para la amplia y activa región polar.
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