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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
Cartografía de hidrógeno del polo sur lunar utilizando el experimento LEND del detector de neutrones LRO
I G Mitrofanov1, A B Sanin, W V Boynton
1Institute for Space Research of the Russian Academy of Science, 117997 Moscow, Russia. imitrofa@space.ru
Science (New York, N.Y.)
|October 23, 2010
Resumen
Los científicos encontraron concentraciones significativas de hidrógeno en la Luna.
Área de la Ciencia:
- La ciencia lunar es la ciencia lunar.
- Astrogeología y Astrogeología.
- Ciencias planetarias Ciencias planetarias.
Sus antecedentes:
- Las concentraciones de hidrógeno mejoradas se inferían previamente en las regiones polares permanentemente sombreadas de la Luna.
- La misión Lunar Crater Observation and Sensing Satellite (LCROSS) tenía como objetivo detectar directamente los volátiles que contienen hidrógeno.
Objetivo del estudio:
- Para identificar los sitios de impacto óptimos para LCROSS utilizando datos de flujo de neutrones.
- Para detectar y cuantificar directamente los volátiles que contienen hidrógeno en la superficie lunar.
Principales métodos:
- Utilizó mediciones de flujo de neutrones del Detector de Neutrones de Exploración Lunar (LEND) en el Orbitador de Reconocimiento Lunar (LRO).
- Se analizó el flujo de neutrones epitermales suprimidos como indicador de un mayor contenido de hidrógeno.
- Sitio de impacto LCROSS seleccionado basado en datos LEND que indican una alta concentración de hidrógeno.
Principales resultados:
- Regiones identificadas con flujo de neutrones suprimido, indicativo de hidrógeno, que no coinciden espacialmente con las regiones permanentemente sombreadas.
- El sitio de impacto LCROSS en el cráter Cabeus mostró la mayor concentración de hidrógeno en la región lunar del polo sur.
- El contenido estimado de hielo de agua en el sitio de impacto de LCROSS osciló entre el 0,5 y el 4,0% en peso.
Conclusiones:
- La distribución del hidrógeno sugiere orígenes de impactos cometarios, implantación del viento solar o fuentes desconocidas.
- Se confirmó la presencia significativa de hidrógeno en la región polar sur lunar, con implicaciones para el hielo de agua.
- Los datos de LCROSS validaron la capacidad de LEND para identificar áreas ricas en hidrógeno para futuras exploraciones.
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