317 citations · 2.6k across the 36 of their papers we have counts for
35 papers
Critical Phenomena in Gravitational Collapse
Carsten Gundlach, David Hilditch, José M. Martín-García
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity. Universalit…
On the constraint equations in Einstein-aether theories and the weak gravitational field limit
David Garfinkle, James Isenberg, Jose M. Martin-Garcia
We discuss the set of constraints for Einstein-aether theories, comparing the flat background case with what is expected when the gravitational fields are dynamic. We note potentia…
Spinors: a Mathematica package for doing spinor calculus in General Relativity
Alfonso García-Parrado Gómez-Lobo, José M. Martín-García
The "Spinors" software is a "Mathematica" package which implements 2-component spinor calculus as devised by Penrose for General Relativity in dimension 3+1. The "Spinors" software…
Summation by parts methods for the spherical harmonic decomposition of the wave equation in arbitrary dimensions
Carsten Gundlach, Jose M. Martin-Garcia, David Garfinkle
We investigate numerical methods for wave equations in spacetime dimensions, written in spherical coordinates, decomposed in spherical harmonics on , and finite-differen…
Mode coupling of Schwarzschild perturbations: Ringdown frequencies
Enrique Pazos, David Brizuela, Jose M. Martin-Garcia +1
Within linearized perturbation theory, black holes decay to their final stationary state through the well-known spectrum of quasinormal modes. Here we numerically study whether non…
High-order perturbations of a spherical collapsing star
David Brizuela, Jose M. Martin-Garcia, Ulrich Sperhake +1
In Ref. [1, 2] a formalism to deal with high-order perturbations of a general spherical background was developed. In this article, we apply it to the particular case of a perfect f…