Zhu, JiachenAbdikamalov, Askar B.Ayzenberg, DimitryAzreg-Ainou, MustaphaBambi, CosimoJamil, MubasherNampalliwar, SourabhTripathi, AshutoshZhou, Menglei2021-05-312021-05-3120201434-6044https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-8198-x.pdfhttp://hdl.handle.net/11727/5929Kaluza-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.enginfo:eu-repo/semantics/openAccessSPHERICALLY SYMMETRIC-SOLUTIONSSPINDISKSTATIONARYGRAVITYarticle8070005530336000012-s2.0-85087960535