27 citations · 42 across the 2 of their papers we have counts for
5 papers · 1 filter
Gravitational Instability of a Kink
W. Barreto, R. Gomez, L. Lehner +1
We study the equilibria of a self-gravitating scalar field in the region outside a reflecting barrier. By introducing a potential difference between the barrier and infinity, we cr…
On characteristic initial data for a star orbiting a black hole
Nigel T. Bishop, Roberto Gomez, Luis Lehner +2
We take further steps in the development of the characteristic approach to enable handling the physical problem of a compact self-gravitating object, such as a neutron star, in clo…
Notes on causal differencing in ADM/CADM formulations: a 1D comparison
Luis Lehner, Mijan Huq, David Garrison
Causal differencing has shown to be one of the promising and successful approaches towards excising curvature singularities from numerical simulations of black hole spacetimes. So…
Cauchy-characteristic matching
N. Bishop, R. Isaacson, R. Gomez +3
This paper gives a detailed pedagogic presentation of the central concepts underlying a new algorithm for the numerical solution of Einstein's equations for gravitation. This appro…
Cauchy-characteristic extraction in numerical relativity
N. Bishop, R. Gomez, L. Lehner +1
We treat the calculation of gravitational radiation using the mixed timelike-null initial value formulation of general relativity. The determination of an exterior radiative soluti…