TESTING RELATIVISTIC REFLECTION AND RESOLVING OUTFLOWS IN PG 1211+143 WITH XMM-NEWTON AND NuSTAR

ABSTRACT We analyze the broad-band X-ray spectrum (0.3-50 keV) of the luminous Seyfert 1/quasar PG 1211+143-the archetypal source for high-velocity X-ray outflows-using near-simultaneous XMM-Newton and NuSTAR observations. We compare pure relativistic reflection models with a model including the str...

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Bibliographic Details
Published in:The Astrophysical journal 2016-11, Vol.831 (2), p.201
Main Authors: Lobban, A. P., Pounds, K., Vaughan, S., Reeves, J. N.
Format: Article
Language:English
Subjects:
ABSORPTION
ACCRETION DISKS
accretion, accretion disks
Astrophysics
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
black hole physics
BLACK HOLES
Constraint modelling
GALAXIES
galaxies: active
galaxies: individual (PG 1211+143)
KEV RANGE
LINEAR ABSORPTION MODELS
Outflow
PHOTOIONIZATION
PHOTONS
QUASARS
quasars: absorption lines
REFLECTION
Relativism
Relativistic effects
RELATIVISTIC RANGE
RESOLUTION
Seyfert galaxies
SIGNAL-TO-NOISE RATIO
SOFT X RADIATION
Soft x rays
Spectra
VELOCITY
Wind
X-RAY SPECTRA
XMM (spacecraft)
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Summary:ABSTRACT We analyze the broad-band X-ray spectrum (0.3-50 keV) of the luminous Seyfert 1/quasar PG 1211+143-the archetypal source for high-velocity X-ray outflows-using near-simultaneous XMM-Newton and NuSTAR observations. We compare pure relativistic reflection models with a model including the strong imprint of photoionized emission and absorption from a high-velocity wind, finding a spectral fit that extrapolates well over the higher photon energies covered by NuSTAR. Inclusion of the high signal-to-noise ratio XMM-Newton spectrum provides much tighter constraints on the model parameters, with a much harder photon index/lower reflection fraction compared to that from the NuSTAR data alone. We show that pure relativistic reflection models are not able to account for the spectral complexity of PG 1211+143 and that wind absorption models are strongly required to match the data in both the soft X-ray and Fe K spectral regions. In confirming the significance of previously reported ionized absorption features, the new analysis provides a further demonstration of the power of combining the high throughput and resolution of long-look XMM-Newton observations with the unprecedented spectral coverage of NuSTAR.
ISSN:0004-637X
1538-4357
DOI:10.3847/0004-637X/831/2/201