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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
Variabilidad temporal y espacial de la hidratación lunar según lo observado por la nave espacial Deep Impact
Jessica M Sunshine1, Tony L Farnham, Lori M Feaga
1University of Maryland, College Park, MD 20742, USA. jess@astro.umd.edu
Science (New York, N.Y.)
|September 26, 2009
Resumen
La Luna La Luna es la Luna.
Área de la Ciencia:
- La ciencia lunar es la ciencia lunar.
- La geoquímica es la geoquímica.
- La exploración espacial es la exploración espacial.
Sus antecedentes:
- La Luna se considera en gran parte seca, pero los hallazgos recientes sugieren la hidratación de la superficie.
- Se han detectado agua (H2O) e hidroxilo (OH) en la superficie lunar.
Objetivo del estudio:
- Para investigar las variaciones diurnas y las fuentes de hidratación de la superficie lunar.
- Para cuantificar los niveles de hidratación en diferentes terrenos lunares.
Principales métodos:
- Análisis de los datos de absorción del infrarrojo cercano de la nave espacial Deep Impact.
- Comparación de los niveles de hidratación entre diferentes regiones lunares y en el tiempo.
Principales resultados:
- Se observó la hidratación de la superficie lunar, particularmente cerca del Polo Norte, con <0.5 wt% H2O.
- Los niveles de hidratación fluctuaban diariamente, en correlación con la temperatura y no con la radiación solar.
- Los basaltos de marea mostraron mayores cambios de hidratación (~ 70%) que las tierras altas (~ 50%) durante un día lunar.
Conclusiones:
- La hidratación de la superficie lunar es un proceso diurno dinámico, que no depende únicamente de la composición.
- Los rápidos cambios de hidratación sugieren una fuente diurna de iones del grupo de agua, probablemente del viento solar.
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