Deep X-ray view of the bare nucleus Seyfert Ark120: unveiling the core of AGN
Subject Category: Active Galactic Nuclei, Quasars, BL-Lac Objects
Proposal Number: 15700004
Title: Deep X-ray view of the bare nucleus Seyfert Ark120: unveiling the core of AGN
PI Name: Delphine Porquet
We propose here a deep XMM-Newton observation (4 x 120 ks) of Ark120
-- and a joint 120ks Chandra/HETG observation to measure the narrow FeK line
core -- to establish the origin of the soft excess (Comptonization or blurred
reflection), its accretion disk properties and its black hole spin. If the soft
excess originates from blurred reflection off an ionized accretion disk, we will
be able to clearly detect and resolve, for the first time unambiguously in a
BLS1 AGN, broad soft X-ray lines (e.g., OVII, OVIII and FeL). It will be the
first very high S/N X-ray observation of a bare AGN.
