115 citations · 1.1k across the 23 of their papers we have counts for
23 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…
Mode coupling in the nonlinear response of black holes
Yosef Zlochower, Roberto Gomez, Sascha Husa +2
We study the properties of the outgoing gravitational wave produced when a non-spinning black hole is excited by an ingoing gravitational wave. Simulations using a numerical code f…
A numerical relativistic model of a massive particle in orbit near a Schwarzschild black hole
Nigel T. Bishop, Roberto Gomez, Sascha Husa +2
We present a method for computing the evolution of a spacetime containing a massive particle and a black hole. The essential idea is that the gravitational field is evolved using f…
Gravitational Waves from a Fissioning White Hole
Roberto Gomez, Sascha Husa, Luis Lehner +1
We present a fully nonlinear calculation of the waveform of the gravitational radiation emitted in the fission of a vacuum white hole. At early times, the waveforms agree with clos…
Retarded radiation from colliding black holes in the close limit
Sascha Husa, Yosef Zlochower, Roberto Gomez +1
We use null hypersurface techniques in a new approach to calculate the retarded waveform from a binary black hole merger in the close approximation. The process of removing ingoing…