MNRAS-2016-Pounds-4389-96.pdf (825.93 kB)
Imprints of a high-velocity wind on the soft X-ray spectrum of PG1211+143
journal contributionposted on 2016-11-21, 10:06 authored by K. A. Pounds, A. P. Lobban, J. N. Reeves, S. Vaughan, M. Costa
An extended XMM–Newton observation of the luminous narrow-line Seyfert galaxy PG1211+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 comoving 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 sightlines to the continuum X-ray source.
XMM–Newton is a space science mission developed and operated by the European Space Agency. We acknowledge in particular the excellent work of ESA staff at the European Space Astronomy Center in Madrid in successfully planning and conducting the relevant XMM–Newton observations. The UK Science and Technology Facilities Council funded the posts of AL and MC.
CitationMonthly Notices of the Royal Astronomical Society, 2016, 459 (4), pp. 4389-4396 (8)
Author affiliation/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomy
- VoR (Version of Record)