September 2024

Virtual infinity seminar; arXiv publications

Virtual Infinity Seminars

Our next seminar speaker is Javier Carballo from the University of Southampton, who will talk on 25 October 2024 about “Arbitrarily long-lived linear black hole perturbations.” Javier will discuss how the non-normal Hamiltonian of black hole quasinormal modes (QNMs) leads to long-lived perturbations. These perturbations, appearing as localized energy packets, will be explored through examples in de Sitter space and Schwarzschild black holes using hyperboloidal foliations.

ArXiv Publications

• Precise asymptotics of the spin +2 Teukolsky field in the Kerr black hole interior by Sebastian Gurriaran

• Einstein-Klein-Gordon system via Cauchy-characteristic evolution: Computation of memory and ringdown tail by Sizheng Ma, Kyle C. Nelli, Jordan Moxon, Mark A. Scheel, Nils Deppe, Lawrence E. Kidder, William Throwe, and Nils L. Vu

• A Bogovskiǐ-type operator for Corvino-Schoen hyperbolic gluing by Piotr T. Chruściel, Albachiara Cogo, and Andrea Nützi

• Spherical Evolution of the Generalized Harmonic Gauge Formulation of General Relativity on Compactified Hyperboloidal Slices by Christian Peterson, Shalabh Gautam, Alex Vañó-Viñuales, and David Hilditch

• Hyperboloidal Approach to Quasinormal Modes by Rodrigo Panosso Macedo and Anil Zenginoglu