2 citations · 2 across the 2 of their papers we have counts for
7 papers
Critical collapse of vacuum spacetimes: Nakamura wave initial data
Thomas W. Baumgarte, Carsten Gundlach, David Hilditch
We report on numerical simulations of critical phenomena in the collapse of axisymmetric vacuum gravitational waves, adopting families of initial data that, to the best of our know…
Simulations of gravitational collapse in null coordinates IV: evolving through the event horizon, with an application to the spherical charged scalar field
Carsten Gundlach, Laetitia Martel
We consider line elements of the form , where does not contain . Surfaces of constant are then null surfaces, and their affinely par…
Critical Phenomena in Gravitational Collapse
Carsten Gundlach, David Hilditch, José M. MartÃn-GarcÃa
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…
The two-body problem in 2+1 spacetime dimensions with negative cosmological constant: two point particles
Carsten Gundlach
We work towards the general solution of the two-body problem in 2+1-dimensional general relativity with a negative cosmological constant. The BTZ solutions corresponding to black h…
Simulations of gravitational collapse in null coordinates: III. Hyperbolicity
Carsten Gundlach
We investigate the well-posedness of the characteristic initial-boundary value problem for the Einstein equations in Bondi-like coordinates (including Bondi, double-null and affine…
Simulations of gravitational collapse in null coordinates: II. Critical collapse of an axisymmetric scalar field
Carsten Gundlach, Thomas W. Baumgarte, David Hilditch
We present the first numerical simulations in null coordinates of the collapse of nonspherical regular initial data to a black hole. We restrict to twist-free axisymmetry, and re-i…