2019MNRAS.483.2958J

We present a detailed analysis of the spectral properties of the Seyfert 1 galaxy 1H0419-577, based on the archival XMM-Newton, NuSTAR, and simultaneous Swift observations taken between 2002 and 2015. All the observations show a broad emission line feature at the iron band. We demonstrate that the broad-band spectral variability at different levels can be explained by the combination of light-bending effects in the vicinity of the central black hole plus a thin warm absorber. We obtain a black hole spin of a > 0.98 by fitting the multi-epoch spectra with the relativistic disc reflection model. 1H0419-577 is accreting at 40 per cent of its Eddington limit and its X-ray band shows the hardest power-law continuum in the highest flux state, which was previously more commonly seen in AGNs with a low accretion rate (e.g. L_x/L_Edd < 10^–2). The NuSTAR observation shows a cool coronal temperature of kT=30⁺²²_–7 keV in the high flux state.