X-ray reflection spectroscopy with Kaluza-Klein black holes
Abstract
Kaluza-Klein theory is a popular alternative theory of gravity, with both non-rotating and rotating black hole solutions known. This allows for the possibility that the theory could be observationally tested. We present a model which calculates the reflection spectrum of a black hole accretion disk system, where the black hole is described by a rotating solution of the Kaluza-Klein theory. We also use this model to analyze X-ray data from the stella-mass black hole in GRS 1915+105 and provide constraints on the free parameters of the Kaluza-Klein black holes.
- Publication:
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European Physical Journal C
- Pub Date:
- July 2020
- DOI:
- 10.1140/epjc/s10052-020-8198-x
- arXiv:
- arXiv:2005.00184
- Bibcode:
- 2020EPJC...80..622Z
- Keywords:
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- General Relativity and Quantum Cosmology
- E-Print:
- 10 pages, 4 figures. v2: refereed version