Neutron Stars in f(R) Gravity with Perturbative Constraints

Abstract

We study the structure of neutron stars in f(R) gravity theories with perturbative constraints. We derive the modified Tolman-Oppenheimer-Volkov equations and solve them for a polytropic equation of state. We investigate the resulting modifications to the masses and radii of neutron stars and show that observations of surface phenomena alone cannot break the degeneracy between altering the theory of gravity versus choosing a different equation of state of neutron-star matter. On the other hand, observations of neutron-star cooling, which depends on the density of matter at the stellar interior, can place significant constraints on the parameters of the theory.

Discussion extended, typos corrected, figures revised. Accepted for publication in PRD

References in corpus (13)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Constraints on a phenomenologically parameterized neutron-star equation of state
• A Parameterized Post-Friedmann Framework for Modified Gravity
• Constraining f(R) Gravity as a Scalar Tensor Theory
• Relativistic stars in f(R) gravity, and absence thereof
• Parametrized Post-Friedmann Signatures of Acceleration in the CMB
• When is g_{tt} g_{rr} = -1?
• The existence of relativistic stars in f(R) gravity
• The linear growth rate of structure in Parametrized Post Friedmannian Universes
• Testing General Metric Theories of Gravity with Bursting Neutron Stars
• Gravity with Perturbative Constraints: Dark Energy Without New Degrees of Freedom
• Stable, Accelerating Universes in Modified Gravity

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