Dynamic transition to spontaneous scalarization in boson stars

Details Dynamic transition to spontaneous scalarization in boson stars Dynamic transition to spontaneous scalarization in boson stars

2010-03-24

arxiv.org/abs/1003.4767v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Minor changes to match the final version to appear in PRD

Scientific paper

We show that the phenomenon of spontaneous scalarization predicted in neutron stars within the framework of scalar-tensor tensor theories of gravity, also takes place in boson stars without including a self-interaction term for the boson field (other than the mass term), contrary to what was claimed before. The analysis is performed in the physical (Jordan) frame and is based on a 3+1 decomposition of spacetime assuming spherical symmetry.

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