The Cherenkov Telescope Array (CTA) is an international initiative to build the next generation ground-based VHE 纬-ray observatory. Full sky coverage will be assured by two arrays, with one located in the northern and one in the southern hemisphere. Three main classes of IACTs (large, medium...
dwarf galaxies are too small and dim for most current instruments to detect this. Another technique is to search for the signatures of growing black holes, such as gas being heated up to millions of degrees and glowing in X-rays as it falls ...