寻找外星文明路漫漫常国兵１９９７年６月１４日，“格里哥利”设备启用了，此举标志着阿雷西沃射电望远镜将以“新的耳朵”监听外星......

A maser spectral line system is newly implemented on the Urumqi 25m Radio Telescope. The system consists mainly of a coo......

We present new statistical results on the spectral index-flux densityrelation for large samples of radio sources using a......