Porquet, D.D.PorquetReeves, J.J.ReevesLobban, A.A.LobbanBRAITO, ValentinaValentinaBRAITONARDINI, EMANUELEEMANUELENARDINIGrosso, N.N.GrossoMatt, G.G.MattMarinucci, A.A.MarinucciTORTOSA, ALESSIAALESSIATORTOSAUrsino, F.F.Ursino2020-07-272020-07-272017http://hdl.handle.net/20.500.12386/26646The physical characteristics of the matter around supermassive black hole (SMBH) are currently determined thanks to X-ray observations. However, the origins of the main X-ray spectral components such as the soft X-ray excess, the FeK line complex and the hard X-ray excess are still hotly debated. This is difficult to investigate in AGN which show a significant warm absorber that severely distort the continuum. Therefore, AGN which show no (or very weak) warm absorption on the line-of-sight, so-called "bare AGN'' are the best targets to probe the processes at work very close to the SMBH. We will present the first results from an extensive observation campaign (XMM-Newton Large Program, Chandra/HETG, NuSTAR) of Ark120 that is the brightest and cleanest bare AGN known so far. We will focus on the analysis of the deep RGS spectrum, as well as on the X-ray broad band spectrum.ELETTRONICOenMultimediahttps://www.cosmos.esa.int/documents/332006/1402684/DPorquet_t.pdfhttps://www.cosmos.esa.int/web/xmm-newton/2017-symposium2017xru..conf..180PFIS/05 - ASTRONOMIA E ASTROFISICA