Astrophysical Constraints on Scalar Field Models

Details Astrophysical Constraints on Scalar Field Models Astrophysical Constraints on Scalar Field Models

2004-08-12

arxiv.org/abs/astro-ph/0408216v1

Phys.Rev. D71 (2005) 023521

Astronomy and Astrophysics

Astrophysics

19 pages, 5 figures

Scientific paper

10.1103/PhysRevD.71.023521

We use stellar structure dynamics arguments to extract bounds on the relevant parameters of scalar field models: the putative scalar field mediator of a fifth force with a Yukawa potential, the new variable mass particle (VAMP) models, and a phenomenologically viable model to explain the Pioneer anomaly. 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.

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