Constraining feedback from AGN: the case of Mrk 509 (Katrien Steenbrugge, Univ. Católica do Norte-Chile)

I will present the optical, UV and X-ray data obtained during a 3 month observational campaign  of the Seyfert 1 galaxy Mrk 509, using 5 different satellites.  In this I talk will focus on the 600 ks XMM-Newton RGS spectrum, which is the deepest high-resolution X-ray spectrum yet of a Seyfert 1 galaxy, and the high signal-to-noise HST-COS UV spectrum. We detect absorption from an AGN wind, the host galaxy and probably a high velocity cloud about 22 kpc from Mrk 509, in addition to absorption from the intergalactic medium and the Galactic interstellar medium. The excellent statistics allow us to study in detail the ionization structure (X-rays) and kinematics (UV) of this gas. The ionizations structure spans 3 orders of magnitude and shows a clear lack of absorption from ions that are on the unstable part of the cooling-curve, indicating that the ionization structure, like the kinematic structure, is not continuous. I will relate the different intrinsic absorption components observed in the X-ray to the absorption components observed in the UV, and show how we use the kinematics and ionization structure to determine the origin of the different components. The origin of the AGN wind allows us to determine the mass of this outflow, and hence its importance in feedback processes. Finally, I will discuss the relative abundances obtained for C, N, Ne, Mg and Fe compared to O from the RGS spectrum, which are some of the very few accurate and reliable abundances determined for the gas surrounding supermassive black holes.