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A relativistic disc reflection model for 1H0419–577: Multi-epoch spectral analysis withXMM–NewtonandNuSTAR
- Source :
- Monthly Notices of the Royal Astronomical Society. 483:2958-2967
- Publication Year :
- 2018
- Publisher :
- Oxford University Press (OUP), 2018.
-
Abstract
- We present a detailed analysis of the spectral properties of the Seyfert 1 galaxy 1H0419-577, based on the archival XMM-Newton, NuSTAR and simultaneous Swift observations taken between 2002-2015. All the observations show a broad emission line feature at the iron band. We demonstrate that the broad band spectral variability at different levels can be explained by the combination of light-bending effects in the vicinity of the central black hole plus a thin warm absorber. We obtain a black hole spin of a > 0.98 by fitting the multi-epoch spectra with the relativistic disc reflection model. 1H0419-577 is accreting at 40% of its Eddington limit and its X-ray band shows the hardest powerlaw continuum in the highest flux state, which was previously more commonly seen in AGNs with a low accretion rate (e.g. $L_{\rm X} /L_{\rm Edd} < 10^{-2}$). The NuSTAR observation shows a cool coronal temperature of $kT=30^{+22}_{-7}$keV in the high flux state.<br />Accepted by MNRAS
- Subjects :
- High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
010308 nuclear & particles physics
Astrophysics::High Energy Astrophysical Phenomena
Spectral properties
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
01 natural sciences
Spectral line
Galaxy
Accretion (astrophysics)
symbols.namesake
Accretion rate
Space and Planetary Science
0103 physical sciences
Eddington luminosity
symbols
Spectral analysis
Emission spectrum
Astrophysics - High Energy Astrophysical Phenomena
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 13652966 and 00358711
- Volume :
- 483
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Accession number :
- edsair.doi.dedup.....54b934525ff998177e7ba1d2ead0690b