The X-ray spectral signatures from the complex circumnuclear regions in NGC424

We propose a 100 ks observation of NGC424 to exploit the full range ofXMMNewton capabilities (RGS+EPIC) by studying the properties of the differentmaterials found in the nucleus of this object.NGC424 is one of the brightestComptonthick AGN,thus being one of the few sources which presently permit thiskind of analysis.The proposed 100 ks EPIC spectrum will allow us to study indetail the properties of the torus,by measuring:the iron Kalpha/Kbeta ratio andthe iron Kalpha centroid energy,to determine its ionization state and thenestimate its distance from the Black Hole;the Compton Shoulder,to check if thecold reflecting matter is indeed the inner wall of the obscuring torus.On theother hand, the RGS high resolution spectrum will allow us to take advantage of truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]