Numerical simulations of gravitational collapse in Einstein-aether theory

Details Numerical simulations of gravitational collapse in Einstein-aether theory Numerical simulations of gravitational collapse in Einstein-aether theory

2007-03-18

arxiv.org/abs/gr-qc/0703093v2

Phys.Rev.D76:024003,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 7 figures; v2: corrected typos, added minor clarifying remarks, improved discussion of results in conclusion

Scientific paper

10.1103/PhysRevD.76.024003

We study gravitational collapse of a spherically symmetric scalar field in Einstein-aether theory (general relativity coupled to a dynamical unit timelike vector field). The initial value formulation is developed, and numerical simulations are performed. The collapse produces regular, stationary black holes, as long as the aether coupling constants are not too large. For larger couplings a finite area singularity occurs. These results are shown to be consistent with the stationary solutions found previously.

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