On the Nature of the High-Energy Rollover in 1H 0419-577

T. J. Turner, J. N. Reeves, V. Braito +1

A NuSTAR/Swift observation of the luminous Seyfert 1 galaxy 1H 0419-577 taken during 2015 reveals one of the most extreme high energy cut-offs observed to date from an AGN - an ori…