Bonn 2020 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 13: Numerical Relativity

GR 13.3: Talk

Thursday, April 2, 2020, 15:45–16:00, H-HS V

Initial data for neutron-star binaries with the new SpECTRE code — •Nils L. Fischer — Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) Potsdam, Deutschland

I report on progress on the next-generation pseudo-spectral numerical relativity code SpECTRE, currently in development by the SXS collaboration. It combines nodal discontinuous Galerkin methods and task-based parallelism to achieve more accurate solutions for challenging relativistic astrophysics problems such as core-collapse supernovae and binary neutron star mergers. In particular, I present the first results solving for initial data for neutron-star binaries using our new numerical technology and I demonstrate the code's ability to scale to the capacity of the Minerva supercomputer at AEI Potsdam.