Induced scalarization in boson stars and scalar gravitational radiation

Abstract

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.

18 pages, 11 figures. Minor changes to match the published version

References in corpus (6)

• Head-on collisions of boson stars
• Orbital Dynamics of Binary Boson Star Systems
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Cited by in corpus (15)

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• Spontaneous scalarization
• Selected topics in scalar-tensor theories and beyond
• Scalarized Hairy Black Holes
• Particle creation due to tachyonic instability in relativistic stars
• Cosmological nonlinear structure formation in full general relativity
• From quantum to classical instability in relativistic stars
• Critical gravitational collapse of a massive complex scalar field
• Boson stars in massless and massive scalar-tensor gravity
• Critical gravitational collapse of a non-minimally coupled scalar field
• Horndeski Proca stars with vector hair
• On the formation of "supermassive" neutron stars and dynamical transition to spontaneous scalarization
• Phase transitions of boson stars in scalar-tensor theories
• Dynamical transition to spontaneous scalarization in neutron stars: The massive scalar field scenario
• Pseudo Spectral Transform for Schrödinger--Poisson Equations