SIMBAD references

2017ApJ...837...21X - Astrophys. J., 837, 21-21 (2017/March-1)

Evidence for relativistic disk reflection in the Seyfert 1h galaxy/ULIRG IRAS 05189-2524 observed by NuSTAR and XMM-Newton.

XU Y., BALOKOVIC M., WALTON D.J., HARRISON F.A., GARCIA J.A. and KOSS M.J.

Abstract (from CDS):

We present a spectral analysis of the NuSTAR and XMM-Newton observations of the Seyfert 1h galaxy/ULIRG IRAS 05189-2524 taken in 2013. We find evidence for relativistic disk reflection in the broadband X-ray spectrum: a highly asymmetric broad Fe Kα emission line extending down to 3 keV and a Compton scattering component above 10 keV. Physical modeling with a self-consistent disk reflection model suggests that the accretion disk is viewed at an intermediate angle with a supersolar iron abundance, and a mild constraint can be put on the high-energy cutoff of the power-law continuum. We test the disk reflection modeling under different absorption scenarios. A rapid black hole spin is favored; however, we cannot place a model-independent tight constraint on the value. The high reflection fraction (Rref ≃  2.0-3.2) suggests that the coronal illuminating source is compact and close to the black hole (lying within 8.7 Rg above the central black hole), where light-bending effects are important.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - black hole physics - galaxies: active - galaxies: individual: IRAS 05189-2524 - galaxies: Seyfert - X-rays: galaxies - X-rays: galaxies

Simbad objects: 9

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