Event
Special High Energy Theory seminar: "Conformal Inversion of Extremal Black Holes, and Aretakis and Newman-Penrose Charges"
Chris Pope (Texas A&M University)
The extremal Reissener-Nordstrom metric is invariant under an inversion of the radial coordinates, combined with a conformal rescaling. This implies that conserved Aretakis charges, defined on the future black hole horizon, map into conserved Newman-Penrose charges defined at future null infinity. We investigate analogous conformal inversions, and charges conserved on the horizon and at infinity, in more general cases.