Testing conformal gravity with the supermassive black hole in 1H0707-495

Abstract

Recently, two of us have found a family of singularity-free rotating black hole solutions in Einstein's conformal gravity. These spacetimes are characterized by three parameters: the black hole mass $M$, the black hole spin angular momentum $J$, and a parameter $L$ that is not specified by the theory but can be expected to be proportional to the black hole mass $M$. The Kerr black hole solution of Einstein's gravity is recovered for $L=0$. In a previous paper, we showed that X-ray data of astrophysical black holes require $L/M<1.2$. In the present paper, we report the results of a more sophisticated analysis. We apply the X-ray reflection model {\sc relxill\_nk} to \textsl{NuSTAR} and \textsl{Swift} data of the supermassive black hole in 1H0707-495. We find the constraint $L/M<0.45$ (90% confidence level).

6 pages, 2 figures. v2: refereed version

References in corpus (15)

• The Confrontation between General Relativity and Experiment
• Can environmental effects spoil precision gravitational-wave astrophysics?
• Constraining Black Hole Spin Via X-ray Spectroscopy
• The Masses and Spins of Neutron Stars and Stellar-Mass Black Holes
• Testing the space-time geometry around black hole candidates with the analysis of the broad K$\alpha$ iron line
• Profiles of emission lines generated by rings orbiting braneworld Kerr black holes
• Iron K$\alpha$ line of Kerr black holes with scalar hair
• Testing general relativity with the reflection spectrum of the supermassive black hole in 1H0707$-$495
• Note on the effect of a massive accretion disk in the measurements of black hole spins
• Light deflection in Weyl gravity: critical distances for photon paths
• The Compton hump and variable blue wing in the extreme low-flux NuSTAR observations of 1H0707-495
• Unattainable extended spacetime regions in conformal gravity
• Formation and evaporation of an electrically charged black hole in conformal gravity
• Testing the performance and accuracy of the RELXILL model for the relativistic X-ray reflection from accretion disks
• The detection of Broad Iron K and L line emission in the Narrow-Line Seyfert 1 Galaxy 1H0707-495 using XMM-Newton

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