Irradiation of an accretion disc by a jet: general properties and implications for spin measurements of black holes
Thomas Dauser,Javier A. García,J. Wilms,M. Böck,Laura Brenneman,Maurizio Falanga,K. Fukumura,Christopher S. Reynolds +7 more
TLDR
In this paper, a detailed, general relativistic approach to model this irradiation for different geometries of the primary X-ray source is presented, including the standard point source on the rotational axis as well as more jet-like sources, which are radially elongated and accelerating.Abstract:
X-ray irradiation of the accretion disc leads to strong reflection features, which are then broadened and distorted by relativistic effects. We present a detailed, general relativistic approach to model this irradiation for different geometries of the primary X-ray source. These geometries include the standard point source on the rotational axis as well as more jet-like sources, which are radially elongated and accelerating. Incorporating this code in the RELLINE model for relativistic line emission, the line shape for any configuration can be predicted. We study how different irradiation geometries affect the determination of the spin of the black hole. Broad emission lines are produced only for compact irradiating sources situated close to the black hole. This is the only case where the black hole spin can be unambiguously determined. In all other cases the line shape is narrower, which could either be explained by a low spin or an elongated source. We conclude that for those cases and independent of the quality of the data, no unique solution for the spin exists and therefore only a lower limit of the spin value can be givenread more
Citations
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Gravitational Field of a Spinning Mass as an Example of Algebraically Special Metrics
Roy P. Kerr,Roy P. Kerr +1 more
Journal ArticleDOI
Improved Reflection Models of Black Hole Accretion Disks: Treating the Angular Distribution of X-Rays
Javier A. García,Thomas Dauser,Anne M. Lohfink,Timothy R. Kallman,James F. Steiner,Jeffrey E. McClintock,Laura Brenneman,Jörn Wilms,W. Eikmann,Christopher S. Reynolds,Francesco Tombesi,Francesco Tombesi +11 more
TL;DR: In this paper, an angle-dependent reflection model with the XILLVER code and self-consistently connected it with the relativistic blurring code RELLINE is presented.
Journal ArticleDOI
X-ray reflected spectra from accretion disk models. iii. a complete grid of ionized reflection calculations
Javier A. García,Javier A. García,Thomas Dauser,Christopher S. Reynolds,Timothy R. Kallman,Jeffrey E. McClintock,Jörn Wilms,W. Eikmann +7 more
TL;DR: In this article, the authors present a library of synthetic spectra for modeling the component of emission that is reflected from an illuminated accretion disk, which is intended for use when the thermal disk flux is faint compared to the incident power-law flux.
Journal ArticleDOI
The role of the reflection fraction in constraining black hole spin
TL;DR: In this paper, the authors calculate the reflection fraction in the lamp post geometry in order to determine its maximal possible value for a given value of black hole spin, and they show that high reflection fractions in excess of 2 are only possible for rapidly rotating black holes, suggesting that the high spin sources produce the strongest relativistic reflection features.
Journal ArticleDOI
X-ray reflected spectra from accretion disk models. III. A complete grid of ionized reflection calculations
Javier A. García,Javier A. García,Thomas Dauser,Christopher S. Reynolds,Timothy R. Kallman,Jeffrey E. McClintock,Jörn Wilms,W. Eikmann +7 more
TL;DR: In this article, the authors present a library of synthetic spectra for modeling the component of emission that is reflected from an illuminated accretion disk, using an updated version of XILLVER that incorporates new routines and a richer atomic data base.
References
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Book
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Gravitational field of a spinning mass as an example of algebraically special metrics
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Journal ArticleDOI
Rotating Black Holes: Locally Nonrotating Frames, Energy Extraction, and Scalar Synchrotron Radiation
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