• DOI:10.1103/PhysRevD.71.023521
• Corpus ID: 16686499

Astrophysical constraints on scalar field models

@article{Bertolami2004AstrophysicalCO,
  title={Astrophysical constraints on scalar field models},
  author={Orfeu Bertolami and Jorge P{\'a}ramos},
  journal={Physical Review D},
  year={2004},
  volume={71},
  pages={023521}
}

• O. Bertolami, J. Páramos
• Published 12 August 2004
• Physics
• Physical Review D

We use stellar structure dynamics arguments to extract bounds on the relevant parameters of two scalar field models: the putative scalar field mediator of a fifth force with a Yukawa potential and the new variable mass particle models. We also analyze the impact of a constant solar inbound acceleration, such as the one reported by the Pioneer anomaly, on stellar astrophysics. We consider the polytropic gas model to estimate the effect of these models on the hydrostatic equilibrium equation and fundamental quantities such as the central temperature. The current bound on the solar luminosity is used to constrain the relevant parameters of each model.