086435

We propose a 120 ks XMM observation of the extraordinary changing-look AGN Mrk 1018 to constrain the distance and details of the structure that produces the narrow Fe-line. In 2015 our team discovered this highly unique AGN in which we are witnessing the ongoing transition process. The response of the narrow Fe-line to the significant drop of the primary X-ray radiation openPardimmed by factor 10closePar did not happen immediately. Even in January 2019 openParlast high S-N XMM observationclosePar the line flux only dropped by a factor of 5. Thus comma we still expect a significant evolution of the line. A joint short HST observation is also requested to maximize the scientific return of the XMM investment and to study the connection of the X-ray emitting corona and the UV accretion disk.