Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy and a Thin Disk Model with Finite Thickness
Abdikamalov AB, Ayzenberg D, Bambi C, Dauser T, Garcia J, Nampalliwar S, Tripathi A, Zhou M (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 899
Article Number: aba625
Journal Issue: 1
Abstract
X-ray reflection spectroscopy is a powerful tool for probing the strong gravity region of black holes and can be used for testing general relativity in the strong field regime. Simplifications of the available relativistic reflection models limit the capability of performing accurate measurements of the properties of black holes. In this paper, we present an extension of the model relxill-nk in which the accretion disk has a finite thickness rather than being infinitesimally thin. We employ the accretion disk geometry proposed by Taylor & Reynolds and we construct relativistic reflection models for different values of the mass accretion rate of the black hole. We apply the new model to high-quality Suzaku data of the X-ray binary GRS 1915+105 to explore the impact of the thickness of the disk on tests of the Kerr metric.
Authors with CRIS profile
Thomas Dauser
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Javier Garcia
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Involved external institutions
China (CN)
Germany (DE)How to cite
APA:
Abdikamalov, A.B., Ayzenberg, D., Bambi, C., Dauser, T., Garcia, J., Nampalliwar, S.,... Zhou, M. (2020). Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy and a Thin Disk Model with Finite Thickness. Astrophysical Journal, 899(1). https://doi.org/10.3847/1538-4357/aba625
MLA:
Abdikamalov, Askar B., et al. "Testing the Kerr Black Hole Hypothesis Using X-Ray Reflection Spectroscopy and a Thin Disk Model with Finite Thickness." Astrophysical Journal 899.1 (2020).
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