Published January 1, 2020
| Version v1
Journal article
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X-ray reflection spectroscopy with Kaluza–Klein black holes
Creators
- 1. Center for Field Theory and Particle Physics, Department of Physics, Fudan University, Shanghai, 200438, China
- 2. Engineering Faculty, Baskent University, Ankara, 06790, Turkey
- 3. Institute for Theoretical Physics and Cosmology, Zhejiang University of Technology, Hangzhou, 310023, China
- 4. Theoretical Astrophysics, Eberhard-Karls Universität Tübingen, Tübingen, 72076, Germany
Description
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.
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