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Observaciones de manchas infrarrojas de Io: una erupción en la región de Loki
Resumen
Júpiter Júpiter Júpiter es el nombre de Júpiter.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- Astronomía por infrarrojos Astronomía por infrarrojos
Sus antecedentes:
- La luna de Júpiter, Io, tiene actividad volcánica.
- Observaciones anteriores sugirieron fuentes de calor localizadas en Io.
Objetivo del estudio:
- Para resolver y caracterizar un punto caliente específico en Io utilizando interferometría de manchas.
- Para determinar la ubicación, el tamaño y las propiedades térmicas del punto caliente observado.
Principales métodos:
- Observaciones de manchas a una longitud de onda de 5 micrómetros en julio de 1984.
- Reconstrucción de imágenes utilizando el algoritmo de Knox-Thompson.
- Análisis de la emisión infrarroja de la superficie de Io.
Principales resultados:
- Se detectó un punto caliente significativo en la región de Loki, que contribuye con el 60% del flujo de disco de Io.
- La ubicación del punto caliente se determinó como 301 ° +/- 6 ° de longitud oeste, 10 ° +/- 6 ° de latitud norte.
- Área estimada de la fuente de 11.400 km2 a una temperatura asumida de 400 K.
Conclusiones:
- El punto caliente observado es consistente con un "lago de lava" activo similar a los previamente observados por la misión Voyager.
- La interferometría de manchas resolvió efectivamente las emisiones térmicas localizadas en Io.
- Los hallazgos proporcionan información sobre la actividad volcánica en curso de Io y los procesos térmicos.
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