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La atmósfera de Marte: detección de criptón y xenón
Science (New York, N.Y.)
|December 11, 1976
Resumen
Los gases nobles criptón y xenón fueron detectados en la atmósfera de Marte. El criptón es más abundante que el xenón, y Marte muestra una inusual proporción de isótopos de xenón en comparación con la Tierra.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Química de la atmósfera química de la atmósfera
- La geoquímica de los isótopos es la geoquímica de los isótopos.
Sus antecedentes:
- La composición de las atmósferas planetarias proporciona información sobre su formación y evolución.
- Los gases nobles son marcadores cruciales para la comprensión de los procesos atmosféricos debido a su naturaleza inerte.
Objetivo del estudio:
- Para informar sobre el descubrimiento y la abundancia de criptón y xenón en la atmósfera marciana.
- Para analizar la composición isotópica de los gases nobles detectados, en particular el xenón.
Principales métodos:
- Análisis atmosférico in situ utilizando un espectrómetro de masas.
- Detección de gases nobles durante la misión Viking 2 a Marte.
Principales resultados:
- Krypton y xenon fueron identificados en la atmósfera marciana.
- Se descubrió que el criptón es más abundante que el xenón.
- La relación isotópica del xenón-129 con el xenón-132 está significativamente mejorada en Marte en comparación con la Tierra.
Conclusiones:
- Los gases nobles detectados ofrecen pistas sobre la historia atmosférica de Marte.
- La anormal proporción de isótopos de xenón sugiere procesos geológicos o atmosféricos específicos únicos en Marte.
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