568 citations · 2.7k across the 34 of their papers we have counts for
34 papers
Axisymmetric core collapse simulations using characteristic numerical relativity
Florian Siebel, Jose A. Font, Ewald Mueller +1
We present results from axisymmetric stellar core collapse simulations in general relativity. Our hydrodynamics code has proved robust and accurate enough to allow for a detailed a…
Simulating the dynamics of relativistic stars via a light-cone approach
Florian Siebel, Jose A. Font, Ewald Mueller +1
We present new numerical algorithms for the coupled Einstein-perfect fluid system in axisymmetry. Our framework uses a foliation based on a family of light cones, emanating from a…
Non-linear radial oscillations of neutron stars: Mode-coupling results
Uli Sperhake, Philippos Papadopoulos, Nils Andersson
The non-linear behaviour of oscillation modes in compact stars is a topic of considerable current interest. Accurate numerical studies of such phenomena are likely to require power…
Scalar field induced oscillations of neutron stars and gravitational collapse
Florian Siebel, Jose A. Font, Philippos Papadopoulos
We study the interaction of massless scalar fields with self-gravitating neutron stars by means of fully dynamic numerical simulations of the Einstein-Klein-Gordon perfect fluid sy…
Evolution systems for non-linear perturbations of background geometries
Philippos Papadopoulos, Carlos F. Sopuerta
The formulation of the initial value problem for the Einstein equations is at the heart of obtaining interesting new solutions using numerical relativity and still very much under…
Non-linear harmonic generation in finite amplitude black hole oscillations
Philippos Papadopoulos
The non-linear generation of harmonics in gravitational perturbations of black holes is explored using numerical relativity based on an in-going light-cone framework. Localised, fi…