22 citations · 69 across the 10 of their papers we have counts for
10 papers
Fully global numerical evolutions of the linearised spin-2 equation
Merlyn Barrer, Jörg Frauendiener, Jörg Hennig +3
We study the linearised spin-2 field on conformally compactified Minkowski spacetime. Initial data are prescribed on past null infinity , and the system is evolved t…
A note on the conformal geometry of the 2-sphere
Jörg Frauendiener
We discuss the geometry of the two-dimensional sphere. Our perspective focuses on the set of conformal factors that rescale a given metric to a round metric. We find that there exi…
Fully non-linear gravitational wave simulations from past to future null-infinity
Jörg Frauendiener, Chris Stevens, Sebenele Thwala
We present the first numerical simulations of asymptotically flat space-times whose computational domain includes past and future null-infinity. As an application, we explore the s…
A numerical framework for studying asymptotic quantities
Breanna Camden, Jörg Frauendiener, Joseph Galinski +3
In this contribution we present an overview of our work on the numerical simulation of the perturbation of a black hole space-time by incoming gravitational waves. The formulation…
The non-linear perturbation of a black hole by gravitational waves. III. Newman-Penrose constants
Jörg Frauendiener, Alex Goodenbour, Chris Stevens
In this paper we continue our study of the non-linear response of a Schwarzschild black hole to an ingoing gravitational wave by computing the Newman-Penrose (NP) constants. The NP…
The non-linear perturbation of a black hole by gravitational waves. II. Quasinormal modes and the compactification problem
Jörg Frauendiener, Chris Stevens
Recently, Friedrich's Generalized Conformal Field Equations (GCFE) have been implemented numerically and global quantities such as the Bondi energy and the Bondi-Sachs mass loss ha…