Singularity-free black holes in conformal gravity: new observational constraints
arXiv:2003.03738 · doi:10.1209/0295-5075/125/30002
Abstract
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 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 (99% confidence level, statistical uncertainty only).
6 pages, 3 figures