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Published on: July 1, 2019
IRAS Serendipitous Observaciones de la encuesta de Plutón y Caronte
Resumen
Las observaciones del satélite astronómico infrarrojo revelan Plutón.
Área de la Ciencia:
- La astronomía y la astrofísica.
- Ciencias planetarias Ciencias planetarias.
Sus antecedentes:
- Observaciones del sistema de Plutón y Caronte Observaciones del sistema de Plutón y Caronte
- Datos de la misión del satélite astronómico infrarrojo (IRAS)
Objetivo del estudio:
- Analizar las emisiones infrarrojas de Plutón y Caronte.
- Caracteriza las propiedades de la superficie y la atmósfera de Plutón.
Principales métodos:
- Dos observaciones puntuales del sistema Plutón-Carón realizadas por el IRAS.
- Detección a 60 y 100 micrómetros.
- Análisis de densidades de flujo y datos espectrales.
Principales resultados:
- El sistema Plutón-Carón detectado como fuente en el Serendipitous Survey.
- Las densidades de flujo corregidas por el color: 581 +/- 58 mJy (60 μm) y 721 +/- 123 mJy (100 μm).
- Plutón exhibe una banda ecuatorial oscura y brillantes capas polares de hielo de metano hasta +/-45 grados de latitud.
Conclusiones:
- Límite superior de ~9 metros-amagats para la abundancia de la columna de la atmósfera de metano en Plutón.
- La abundancia de metano en la atmósfera es comparable a los límites espectroscópicos terrestres.
- Los datos de IRAS proporcionan valiosas restricciones sobre la composición atmosférica y las características de la superficie de Plutón.
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