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arxiv: 2003.03738 · v1 · pith:4LW5G4OXnew · submitted 2020-03-08 · 🌀 gr-qc

Singularity-free black holes in conformal gravity: new observational constraints

Menglei Zhou , Askar B. Abdikamalov , Dimitry Ayzenberg , Cosimo Bambi , Leonardo Modesto , Sourabh Nampalliwar , Yerong Xu This is my paper
classification 🌀 gr-qc
keywords blackconformalfoundgravityholesingularity-freeanalysisbambi
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We consider the family of singularity-free rotating black hole solutions in Einstein's conformal gravity found in Bambi, Modesto & Rachwal (2017) and we constrain the value of the conformal parameter $L$ from the analysis of a 30 ks NuSTAR observation of the stellar-mass black hole in GS 1354-645 during its outburst in 2015. Our new constraint is much stronger than that found in previous work. Here we obtain $L/M < 0.12$ (99% confidence level, statistical uncertainty only).

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