English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present the spectral analysis of Chandra/HETGS and NuSTAR observations ofthe quasar PDS 456 from 2015, and XMM-Newton and NuSTAR archival data from2013-2014, together with Chandra/HETGS data from 2003. We analyzed these threedifferent epochs in a consistent way, looking for absorption featurescorresponding to highly ionized blueshifted absorption lines from H-like andHe-like ions of iron (and nickel), as well as of other elements (O, Ne, Si, andS) 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 alsoreport the detection of an additional faster component of the UFO with arelativistic velocity of v_out=-0.48c. We implemented photoionization modeling,using XSTAR analytic model warmabs, to characterize the physical properties ofthe different kinematic components of the ultra-fast outflow and of the partialcovering absorber detected in PDS 456. These two relativistic components of theultra-fast outflow observed in the three epochs analyzed in this paper arepowerful enough to impact the host galaxy of PDS 456 through AGN feedback.

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