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Updated: Jul 11, 2026
06:14
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
Resumen
El sodio atómico traza la atmósfera lunar, detectado por debajo de los 100 km. Las observaciones revelan que el sodio se extiende varios radios lunares, principalmente liberado por fotones solares y viento, no por micrometeoritos.
Área de la Ciencia:
- La ciencia lunar es la ciencia lunar.
- Ciencias de la atmósfera ciencia atmosférica.
- La física atómica es la física atómica.
Sus antecedentes:
- El sodio atómico es un trazador eficaz para la exosfera de la Luna debido a la dispersión eficiente de la luz solar en las longitudes de onda D(1) y D(2).
- Anteriores observaciones terrestres en 1988 detectaron sodio en densidades por debajo de 50 átomos / cm3 a altitudes inferiores a 100 km.
Objetivo del estudio:
- Para investigar la distribución y la fuente de sodio atómico en la atmósfera lunar.
- Para comprender los procesos responsables de la liberación de sodio de la superficie lunar.
Principales métodos:
- Utilizó observaciones telescópicas con una técnica de coronografía para oscurecer el disco lunar.
- Analizó la distribución espacial y la densidad de sodio atómico alrededor de la Luna.
Principales resultados:
- Confirmó la presencia de sodio atómico que se extiende varios radios lunares de la Luna.
- Demostró una dependencia del ángulo del cenit solar en la distribución del sodio.
- Se encontró que la densidad de sodio era inferior a 50 átomos / cm3 por debajo de 100 km.
Conclusiones:
- La fuente primaria de sodio lunar a gran altitud es probablemente la interacción de fotones solares (calentamiento / pulverización) y el impacto del viento solar.
- El bombardeo de micrometeoritos no es la fuente dominante de sodio lunar a mayores altitudes.
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