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Los hielos de la superficie y la composición atmosférica de Plutón
Science (New York, N.Y.)
|August 6, 1993
Resumen
Plutón es Plutón y Plutón es Plutón.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La astronomía es la astronomía.
- La espectroscopia es una técnica de espectroscopia.
Sus antecedentes:
- La composición de la superficie de Plutón es clave para entender su formación.
- Las observaciones anteriores insinuaban varios hielos, pero carecían de una confirmación espectral detallada.
Objetivo del estudio:
- Para analizar el espectro de 1,4 a 2,4 micrómetros de Plutón.
- Para identificar los hielos de la superficie e inferir la composición atmosférica.
Principales métodos:
- Análisis espectroscópico de la superficie de Plutón en el rango de 1,4 a 2,4 micrómetros.
Principales resultados:
- Se confirmó la presencia de hielos de monóxido de carbono y nitrógeno, junto con metano sólido.
- El nitrógeno congelado identificado como el hielo más abundante (aprox. 50x otros).
- Diferencias observadas en las características espectrales en comparación con Tritón, en particular la ausencia de absorciones de dióxido de carbono.
Conclusiones:
- El nitrógeno gaseoso se infiere como el principal constituyente atmosférico de Plutón.
- La composición de la superficie de Plutón proporciona información sobre la nebulosa solar temprana y la formación planetesimal.
- Las diferencias espectrales entre Plutón y Tritón resaltan distintas vías evolutivas.
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