ASASSN-18ey: The Rise of a New Black-Hole X-ray Binary

M. A. Tucker, B. J. Shappee, T. W. -S. Holoien +21

We present the discovery of ASASSN-18ey (MAXI J1820+070), a new black hole low-mass X-ray binary discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN). A week after A…