X-RAY REFLECTED SPECTRA FROM ACCRETION DISK MODELS. III. A COMPLETE GRID OF IONIZED REFLECTION CALCULATIONS
By Javier A. García, T. Dauser, C. Reynolds, T. Kallman, J. E. McClintock, J. Wilms, W. Eikmann. 2013
291 citations recorded by the source corpus.
We present a new and complete library of synthetic spectra for modeling the component of emission that is reflected from an illuminated accretion disk. The spectra were computed using an updated version of our code xillver that incorporates new routines and a richer atomic database. We offer in the form of a table model an extensive grid of reflection models that cover a wide range of parameters. Each individual model is characterized by the photon index Γ of the illuminating radiation, the ionization parameter ξ at the surface of the disk (i.e., the ratio of the X-ray flux to the gas density), and the iron abundance AFe relative to the solar value. The ranges of the parameters covered are 1.2 ⩽ Γ ⩽ 3.4, 1 ⩽ ξ ⩽ 104, and 0.5 ⩽ AFe ⩽ 10. These ranges capture the physical conditions typically inferred from observations of active galactic nuclei, and also stellar-mass black holes in the hard state. This library is intended for use when the thermal disk flux is faint compared to the incident power-law flux. The models are expected to provide an accurate description of the Fe K emission line, which is the crucial spectral feature used to measure black hole spin. A total of 720 reflection spectra are provided in a single FITS file (http://hea-www.cfa.harvard.edu/~javier/xillver/) suitable for the analysis of X-ray observations via the atable model in xspec. Detailed comparisons with previous reflection models illustrate the improvements incorporated in this version of xillver.
Subfields: Astronomy and Astrophysics, Geophysics, Statistics and Probability
View Paper: https://www.semanticscholar.org/paper/abdb152cdd449da5e845ad5cd6e691ded0c7aa50
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In Astronomy and Astrophysics
- Cosimo Bambi
- C. Reynolds
- J. E. McClintock
- J. Steiner
- T. Dauser
- Ramesh Narayan
- Javier A. García
- T. Kallman
In Geophysics
In Statistics and Probability
Citations in the corpus
- A review of quasi-periodic oscillations from black hole X-ray binaries: Observation and theory (2019, methodology): “This interpretation is ruled out by the NuSTAR data since we see that the strongest Compton hump coincides with the bluest iron line, whereas increased disc ionization leads to the Compton hump being weaker compared with the line [64].”
- IMPROVED REFLECTION MODELS OF BLACK HOLE ACCRETION DISKS: TREATING THE ANGULAR DISTRIBUTION OF X-RAYS (2013, methodology): “…simplifications adopted by previous models – i.e., limited ionization balance calculations and angleaveraged reflected flux – by exploiting the full capabilities of our reflection code XILLVER (García & Kallman 2010; García et al. 2013), to treat the angular distribution of the reflected X-rays.”
- Normalizing a Relativistic Model of X-ray Reflection: The Definition of the Reflection Fraction and its Implementation in relxill (2016, methodology): “In the nonrelativistic case, this is the standard assumption built into such widely used reflection models such as pexrav (Magdziarz & Zdziarski 1995), reflionx (Ross & Fabian 2005), and xillver (García et al. 2013).”
- Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy (2016, methodology): “It is an extension of the RELXILL package (Dauser et al. 2013; García et al. 2013, 2014) to non-Kerr spacetimes.”