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X-ray reflection spectroscopy with Kaluza-Klein black holes

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arxiv 2005.00184 v2 pith:YQPH7BTA submitted 2020-05-01 gr-qc

Jiachen Zhu , Askar B. Abdikamalov , Dimitry Ayzenberg , Mustapha Azreg-Ainou , Cosimo Bambi , Mubasher Jamil , Sourabh Nampalliwar , Ashutosh Tripathi
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Menglei Zhou
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keywords blackholekaluza-kleintheoryholesmodelreflectionrotating
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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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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Testing non-circular black hole spacetime with X-ray reflection

    gr-qc 2026-02 conditional novelty 6.0 of 10

    X-ray reflection data for EXO 1846–031 cannot distinguish the non-circular deformation parameter ℓ_NP from zero, remaining consistent with the Kerr hypothesis.

  2. Testing General Relativity with Black Holes

    gr-qc 2025-08 unverdicted novelty 1.0 of 10

    A status review of X-ray tests of the Kerr black hole hypothesis, concluding that current data are consistent with General Relativity, plus a speculative interstellar probe proposal.

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