The soft X-ray spectrum of the luminous narrow line Seyfert galaxy PG 1211+143-evidence for a second high-velocity outflow component

An XMM-Newton observation of the luminous Seyfert galaxy PG 1211+143 in 2001 revealed the first clear evidence for a highly ionized high-speed wind (in a non-broad absorption line active galactic nucleus), with a velocity of v similar to 0.09c based on the identification of blueshifted absorption lines in both EPIC and Reflection Grating Spectrometer (RGS) spectra. A subsequent analysis of EPIC spectra, including additional absorption lines, led to an upward revision of the wind speed to similar to 0.14c, while broad-band modelling indicated the need for a second, partial covering absorber to account for continuum curvature and spectral variability. We show here, in a new analysis of the XMM-Newton RGS data, that this additional absorber is detected in the soft X-ray spectra, with the higher spectral resolution providing a much improved velocity constraint, with v similar to 0.07c. Similar variability of the similar to 0.07c and similar to 0.14c outflow components suggests they are physically linked, and we speculate that occurs by the fast (primary) wind impacting on small clumps of higher density, slow-moving matter close to the disc. We show that strong, velocity broadened soft X-ray emission features, located at the redshift of PG 1211+143, indicate the extended scale of the ionized outflow.