Extreme variability in an active galactic nucleus: Gaia16aax - Cannizzaro, G; Fraser, M; Jonker, P G; Pringle, J E; Mattila, S; Hewett, P C; Wevers, T; Kankare, E; Kostrzewa-Rutkowska, Z; Wyrzykowski, Ł; Onori, F; Harmanen, J; et al. (Monthly notices of the Royal Astronomical Society, 2020)
Keywords: quasars: supermassive black holes; galaxies: nuclei; transients: tidal disruption events; quasars: individual: Gaia16aax; galaxies: active; accretion, accretion discs