Evolving spherical boson stars on a 3D cartesian grid

Details Evolving spherical boson stars on a 3D cartesian grid Evolving spherical boson stars on a 3D cartesian grid

2004-07-14

arxiv.org/abs/gr-qc/0407054v1

Phys.Rev. D70 (2004) 044033

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 13 figures. To appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.70.044033

A code to evolve boson stars in 3D is presented as the starting point for the evolution of scalar field systems with arbitrary symmetries. It was possible to reproduce the known results related to perturbations discovered with 1D numerical codes in the past, which include evolution of stable and unstable equilibrium configurations. In addition, the apparent and event horizons masses of a collapsing boson star are shown for the first time. The present code is expected to be useful at evolving possible sources of gravitational waves related to scalar field objects and to handle toy models of systems perturbed with scalar fields in 3D.

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