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An Atmospheric Pressure Plasma Setup to Investigate the Reactive Species Formation
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Las plumas de Tritón parecidas a géiseres: descubrimiento y caracterización básica
Science (New York, N.Y.)
|October 19, 1990
Resumen
La Voyager 2 descubrió erupciones activas de géiseres en la luna de Neptuno Tritón. El calentamiento solar del hielo de nitrógeno subterráneo probablemente impulsa estas columnas, expulsando material alto en la atmósfera.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La geofísica es la geofísica.
- Ciencias de la atmósfera Ciencias atmosféricas.
Sus antecedentes:
- Tritón, la luna más grande de Neptuno, exhibe una dinámica actividad geológica.
- Las observaciones anteriores sugirieron posibles procesos criovolcánicos en Tritón.
Objetivo del estudio:
- Para analizar y caracterizar las erupciones similares a géiseres observadas en Tritón.
- Proponer un mecanismo que impulse estos penachos observados.
Principales métodos:
- Análisis de las imágenes de Tritón tomadas por la Voyager 2.
- Modelado de potenciales procesos subterráneos.
Principales resultados:
- Descubrimiento de al menos cuatro erupciones activas parecidas a géiseres en Tritón.
- Las erupciones expulsan material oscuro de hasta 8 km de altura, formando nubes de viento en más de 100 km.
- Un modelo sugiere que el calentamiento solar del hielo de nitrógeno subterráneo impulsa la ventilación explosiva.
Conclusiones:
- Las erupciones observadas son consistentes con un modelo de sublimación de hielo de nitrógeno.
- Un modesto aumento de temperatura (<4 K) es suficiente para alimentar estas plumas.
- Cada erupción puede sublimar aproximadamente 0,1 km3 de hielo durante su duración.
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