An X-ray and optical spectral study of the changing-look narrow-line Seyfert 1 2MASX J0413-0050

A. Vietri, A. Tortosa, D. Ilić +12

Active galactic nuclei (AGN) showing dramatic spectral and flux variations, either due to changes in the accretion rate (changing-state, CS-AGN) of the supermassive black hole or i…