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Newman-Penrose quantities as valuable tools in astrophysical relativity
Marco Bruni, Andrea Nerozzi, Frances White
In this talk I will briefly outline work in progress in two different contexts in astrophysical relativity, i.e. the study of rotating star spacetimes and the problem of reliably e…
Towards wave extraction in numerical relativity: the quasi-Kinnersley frame
Andrea Nerozzi, Christopher Beetle, Marco Bruni +2
The Newman-Penrose formalism may be used in numerical relativity to extract coordinate-invariant information about gravitational radiation emitted in strong-field dynamical scenari…
Towards a novel wave-extraction method for numerical relativity. I. Foundations and initial-value formulation
Christopher Beetle, Marco Bruni, Lior M. Burko +1
The Teukolsky formalism of black hole perturbation theory describes weak gravitational radiation generated by a mildly dynamical hole near equilibrium. A particular null tetrad of…