Broad Iron Emission from Gravitationally Lensed Quasars Observed by Chandra

@article{Walton2015BroadIE,
  title={Broad Iron Emission from Gravitationally Lensed Quasars Observed by Chandra},
  author={Dominic J. Walton and Mark T. Reynolds and J. Mitchell Miller and Rubens C. Reis and Daniel Stern and Fiona A. Harrison},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2015}
}
Recent work has demonstrated the potential of gravitationally lensed quasars to extend measurements of black hole spin out to high-redshift with the current generation of X-ray observatories. Here we present an analysis of a large sample of 27 lensed quasars in the redshift range 1.0<z<4.5 observed with Chandra, utilizing over 1.6 Ms of total observing time, focusing on the rest-frame iron K emission from these sources. Although the X-ray signal-to-noise (S/N) currently available does not… Expand

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References

SHOWING 1-10 OF 51 REFERENCES
Reflection from the strong gravity regime in a lensed quasar at redshift z = 0.658
TLDR
The high spin found here is indicative of growth by coherent accretion for this black hole, and suggests that black-hole growth at 0.5 ≤ z  1 occurs principally by coherent rather than chaotic accretion episodes. Expand
Fe K emission from active galaxies in the COSMOS field
We present a rest-frame spectral stacking analysis of ∼1000 X-ray sources detected in the XMM-COSMOS field to investigate the iron-K line properties of active galaxies beyond redshift z ∼ 1. In TypeExpand
An XMM–Newton survey of broad iron lines in Seyfert galaxies
We present an analysis of the X-ray spectra of a sample of 37 observations of 26 Seyfert galaxies observed by XMM–Newton in order to characterize their iron Kα emission. All objects show evidence forExpand
A rapidly spinning supermassive black hole at the centre of NGC 1365
TLDR
X-ray observations of NGC 1365 are reported that reveal the relativistic disk features through broadened Fe-line emission and an associated Compton scattering excess of 10–30 kiloelectronvolts. Expand
The similarity of broad iron lines in X-ray binaries and active galactic nuclei
We have compared the 2001 XMM–Newton spectra of the stellar mass black hole binary XTE J1650−500 and the active galaxy MCG–6-30-15, focusing on the broad, excess emission features at ∼4–7 keVExpand
Suzaku observations of 'bare' active galactic nuclei
We present an X-ray spectral analysis of a large sample of 25 ‘bare’ active galactic nuclei (AGN), sources with little or no complicating intrinsic absorption, observed with Suzaku. Our work focusesExpand
ASCA Observations of Seyfert 1 Galaxies. II. Relativistic Iron Kα Emission
We present evidence for widespread relativistic effects in the central regions of active galactic nuclei. In a sample of 18 Seyfert 1 galaxies observed by ASCA, 14 show an iron K? line that isExpand
Chandra Observations of QSO 2237+0305
We present the observations of the gravitationally lensed system QSO 2237+0305 (Einstein Cross) performed with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory on 2000Expand
The XMM Deep survey in the CDF-S - V. Iron K lines from active galactic nuclei in the distant Universe
Context. X-ray spectroscopy of active galactic nuclei (AGN) offers the opportunity to directly probe the inner regions of th e accretion disk. Reflection of the primary continuum on the circumnucleExpand
The Chandra View of the Largest Quasar Lens SDSS J1029+2623
We present results from Chandra observations of the cluster lens SDSS J1029+2623 at z{sub l} = 0.58, which is a gravitationally lensed quasar with the largest known image separation. We clearlyExpand
...
1
2
3
4
5
...