742 citations · 805 across the 15 of their papers we have counts for
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gr-qc2021
The non-linear perturbation of a black hole by gravitational waves. I. The Bondi-Sachs mass loss
Jörg Frauendiener, Chris Stevens
The excitation of a black hole by infalling matter or radiation has been studied for a long time, mostly in linear perturbation theory. In this paper we study numerically the respo…
gr-qc2021
Can gravitational waves halt the expansion of the universe?
Jörg Frauendiener, Jonathan Hakata, Chris Stevens
We numerically investigate the propagation of plane gravitational waves in the form of an initial boundary value problem with de Sitter initial data. The full non-linear Einstein e…
gr-qc2021★ 9 cited
A new look at the Bondi-Sachs energy-momentum
Jörg Frauendiener, Chris Stevens
How does one compute the Bondi mass on an arbitrary cut of null infinity $\scri$ when it is not presented in a Bondi system? What then is the correct definition of the mass aspect?…