月球亮温度的射电多波段地基观测

月球是距离地球最近的天体,人类对它的研究探索一直没有停止。月球不仅反射可见光,还在红外和微波频段遵循热辐射机制辐射能量。亮温度是反映微波特性的一个重要指标。由月球亮温度,可以进行月壤特性的研究,从而进一步分析月球表层及近表层结构和物质组成。另外月球亮温度也是影响月球探测器星地链路的一个重要因素。从月球的亮温度出发,阐述了月球射电辐射机制;并对地基射电望远镜的多波段观测进行总结,分别从设备、方法、结果等方面给出月球亮温度观测的发展;最后对我国地基射电望远镜对月球亮温度的观测进行了介绍。

Measurements of Lunar Brightness Temperatures at Multiple Radio Bands Using a Radio Telescope

The moon is the nearest celestial object from the earth.The moon reflects sunlight at optical avelengths and radiates energy at infrared and microwave wavelengths.Brightness temperature can represent he intensity of radio emission.Dielectric constant,specific heat,and conductivity of lunar regolith can be nferred from the lunar brightness temperatures,with such results useful for understanding the structure of unar regolith.Furthermore,an antenna pointed toward or nearly toward the moon will result in an in...