Sep 8 – 13, 2019
Europe/Rome timezone
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Solving the hard X-rays excess in the NLSy 1 TON S180

Sep 13, 2019, 6:08 PM
2m

Speaker

Gabriele Matzeu (European Space Agency/European Space Astronomy Centre)

Description

We present a detailed analysis of a joint XMM-Newton & NuSTAR observation of the nearby ($z=0.062$) luminous NLSy 1 galaxy TON S180 taken in 2016. We find that the observed steep soft excess is likely produced by Comptonization rather than relativistic reflection. By analyzing the broadband SED from 1 eV to 35 keV, we find that the overall intrinsic properties of the continuum can be accounted for by thermal emission from the disc (UV) plus Comptonized emission from the corona at a high fraction ($\sim70\%$) of the Eddington limit. We also find that there is a weak contribution of disc reflection with a moderate black hole spin.

Affiliation ESA/ESAC
Topic Active Galactic Nuclei: accretion physics and evolution across cosmic time

Primary authors

Gabriele Matzeu (European Space Agency/European Space Astronomy Centre) Emanuele Nardini (Istituto Nazionale di Astrofisica (INAF)) Dr Delphine Porquet (LAM) Dr James Reeves (University of Maryland) Valentina Braito Michael Parker (ESA/ESAC) Dr Maria Santos-Lleo

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