Weak Galactic radio sources spectral indices

In the next few years the classification of radio sources observed by the large surveys will be a challenging problem and spectral index is a powerful tool for addressing it....未来数年内，对大型巡天观测所探测到的射电源（radio sources）进行分类，将是一项极具挑战性的课题，而谱指数（spectral index）则是解决该问题的有力工具……