The trumpet solution from spherical gravitational collapse with puncture gauges
General Relativity and Quantum Cosmology
2011-03-28 v2
Abstract
We investigate the stationary end-state obtained by evolving a collapsing spherical star with the gauges routinely adopted to study puncture black holes. We compare the end-state of the collapse with the trumpet solution found in the evolution of a single wormhole slice and show that the two solutions closely agree. We demonstrate that the agreement is caused by the use of the Gamma-driver shift condition, which allows the matter to fall inwards into a region of spacetime that is not resolved by the numerical grid, and which simultaneously finds the stationary coordinates of the trumpet outside the matter.
Keywords
Cite
@article{arxiv.1012.3703,
title = {The trumpet solution from spherical gravitational collapse with puncture gauges},
author = {Marcus Thierfelder and Sebastiano Bernuzzi and David Hilditch and Bernd Bruegmann and Luciano Rezzolla},
journal= {arXiv preprint arXiv:1012.3703},
year = {2011}
}