Using Wald's formalism and the thermodynamics method, the paper computes conserved charges and dual CFT central charges for WAdS3 black holes in NMG and ENMG, finding results consistent with earlier work.
Holographic Descriptions of Black Rings
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abstract
In this paper, we investigate the holographic descriptions of two kinds of black rings, the neutral doubly rotating black ring and the dipole charged black ring. For generic nonextremal black rings, the information of holographic CFT duals, including the central charges and left- and right-moving temperatures, could be read from the thermodynamics at the outer and inner horizons, as suggested in arXiv:1206.2015. To confirm these pictures, we study the extreme black rings in the well-established formalism. We compute the central charges of dual CFTs by doing asymptotic symmetry group analysis in the stretched horizon formalism, and find exact agreements. Moreover, we study the superradiant scattering of a scalar field off the near-extremal black rings and obtain the scattering amplitudes, which are in good match with the CFT predictions.
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Note on WAdS$_3$ black holes in extended BHT gravity
Using Wald's formalism and the thermodynamics method, the paper computes conserved charges and dual CFT central charges for WAdS3 black holes in NMG and ENMG, finding results consistent with earlier work.