Relativistic components of the Ultra-Fast Outflow in the Quasar PDS 456 from Chandra/HETGS, NuSTAR and XMM-Newton observations

Abstract

We present the spectral analysis of Chandra/HETGS and NuSTAR observations of the quasar PDS 456 from 2015, and XMM-Newton and NuSTAR archival data from 2013-2014, together with Chandra/HETGS data from 2003. We analyzed these three different epochs in a consistent way, looking for absorption features corresponding to highly ionized blueshifted absorption lines from H-like and He-like ions of iron (and nickel), as well as of other elements (O, Ne, Si, and S) in the soft band. We confirm the presence of a persistent ultra-fast outflow (UFO) with a velocity of v_out=-0.24 - -0.29c, previously detected. We also report the detection of an additional faster component of the UFO with a relativistic velocity of v_out=-0.48c. We implemented photoionization modeling, using XSTAR analytic model warmabs, to characterize the physical properties of the different kinematic components of the ultra-fast outflow and of the partial covering absorber detected in PDS 456. These two relativistic components of the ultra-fast outflow observed in the three epochs analyzed in this paper are powerful enough to impact the host galaxy of PDS 456 through AGN feedback.

23 pages, 13 figures, 9 tables, accepted for publication in the Astrophysical Journal (ApJ) 2019 January 19

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Cited by in corpus (10)

• Resolving the soft X-ray ultra fast outflow in PDS 456
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• The flaring X-ray corona in the quasar PDS 456
• Detection of a variable ultra-fast outflow in the Narrow Line Seyfert 1 galaxy PG 1448+273
• Linking the small scale relativistic winds and the large scale molecular outflows in the z = 1.51 lensed quasar HS 0810+2554
• X-raying winds in distant quasars: the first high-redshift wind duty cycle
• New radiative loss curve from updates to collisional excitation in the low-density, optically thin plasmas in SPEX
• Modelling X-ray RMS spectra II: the ultra-fast outflow of PDS 456
• Constraining X-ray Coronal Size with Transverse Motion of AGN Ultra-Fast Outflows
• Wind-luminosity evolution in NLS1 AGN 1H 0707-495