27 citations · 42 across the 2 of their papers we have counts for
6 papers
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…
Colliding black holes from a null point of view: the close limit
Sascha Husa, Manuela Campanelli, Roberto Gomez +2
We present a characteristic algorithm for computing the perturbations of a Schwarzschild spacetime by means of solving the Teukolsky equations. Our methods and results are expected…
A New Way to Make Waves
Jeffrey Winicour
I describe a new algorithm for solving nonlinear wave equations. In this approach, evolution takes place on characteristic hypersurfaces. The algorithm is directly applicable to el…
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…