6533b832fe1ef96bd129ae8f

RESEARCH PRODUCT

Induced scalarization in boson stars and scalar gravitational radiation

Miguel AlcubierreMilton RuizDar ´ õO NunezJuan Carlos DegolladoJuan Carlos DegolladoMarcelo Salgado

subject

AstrofísicaCondensed Matter::Quantum GasesPhysicsNuclear and High Energy PhysicsParticle physicsGeneral relativityGravitational waveScalar (mathematics)Scalar theories of gravitationFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Scalar bosonGeneral Relativity and Quantum CosmologyGeneral Relativity and Quantum CosmologyNumerical relativityTheoretical physicsScalar fieldAstrophysics::Galaxy AstrophysicsBoson

description

The dynamical evolution of boson stars in scalar-tensor theories of gravity is considered in the physical (Jordan) frame. We focus on the study of spontaneous and induced scalarization, for which we take as initial data configurations on the well-known S-branch of a single boson star in general relativity. We show that during the scalarization process a strong emission of scalar radiation occurs. The new stable configurations (S-branch) of a single boson star within a particular scalar-tensor theory are also presented.

https://doi.org/10.1103/physrevd.86.104044