AGN winds in PG 1114+445: feedback from nuclear to galaxy scales

Extensive evidence in the last few decades suggests that the evolution of supermassive black holes (SMBHs) and that of their host galaxies are tightly related. Powerful winds driven by Active Galactic Nuclei (AGNs) are often invoked as a fundamental mechanism by which the SMBH transfers its energy on the surrounding environment. Here, we present the spectral analysis of 12 XMM-Newton EPIC archival observations of PG 1114+445, a type-1 quasar at z=0.144, showing the presence of three layers of ionized absorbing material with outflow velocities ranging from 500 km s^-1 up to 0.15c. Together with a UFO and a slow, moderately ionized warm absorber, we detect the presence of a "low-ionization UFO", that we interpret as the observational evidence of the entraining of the inner UFO on the surrounding ambient medium, represented by the warm absorber. Indipendently on the assumption of momentum- or energy-driven scenario, we obtain a low value for the clumpiness, C_v ~10^-3, which agrees with a narrow-line region origin at ~100 pc.