Fast Outflowing Warm Absorbers in Narrow-line Seyfert 1 Galaxy PG 1001+054 Revealed by HST/COS Spectra

Abstract Narrow-line Seyfert 1 (NLS1) galaxies are an important type of active galactic nucleus (AGN), generally expected to be accreting at a high Eddington rate. The properties their outflows and importance AGN feedback remain intriguing. We report on the discovery fast outflowing warm absorbers (WAs) in NLS1 PG 1001+054 with velocities range ∼7000–9000 km s −1 . They identified blueshifted Ly α , N v, Si iv lines high-resolution ultraviolet (UV) spectra taken Cosmic Origins Spectrograph board Hubble Space Telescope. perform photoionization modeling using XSTAR three WAs. derived physical typical WAs terms ionization column density, whereas outflow significantly higher. estimated location these ranges from 73 parsecs away AGN. Together previous detection X-ray for 1001+054, we suggest that UV probably part multiphase outflow. Such structure is likely produced by launched accretion disk scale, which shocks ambient interstellar medium (ISM), producing stratified absorbers. Assuming contribution tens parsecs, ratio between kinetic power luminosity could reach 1.7%, raising possibility sufficient influence host galaxy when compared some theoretical models efficient feedback.