Imprints of a high velocity wind on the soft x-ray spectrum of PG 1211+143

TL;DR

This study analyzes a high velocity wind in the Seyfert galaxy PG 1211+143, revealing complex ionized outflows with multiple velocity components through soft X-ray spectral features, indicating a structured and dense outflow environment.

Contribution

It provides the first detailed soft X-ray spectral analysis of multiple high velocity wind components in PG 1211+143, linking soft and hard X-ray absorption features.

Findings

Detection of soft X-ray emission and absorption features from high velocity outflows.

Identification of two velocity components, ~0.129c and ~0.066c, in soft X-ray spectra.

Evidence for a structured outflow with varying density and sight lines.

Abstract

An extended XMM-Newton observation of the luminous narrow line Seyfert galaxy PG 1211+143 in 2014 has revealed a more complex high velocity wind, with components distinguished in velocity, ionization level, and column density. Here we report soft x-ray emission and absorption features from the ionized outflow, finding counterparts of both high velocity components, v ~ 0.129c and v ~ 0.066c, recently identified in the highly ionized Fe K absorption spectrum. The lower ionization of the co-moving soft x-ray absorbers imply a distribution of higher density clouds embedded in the main outflow, while much higher column densities for the same flow component in the hard x-ray spectra suggest differing sight lines to the continuum x-ray source.