Do f(R) theories matter?

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.084018· OSTI ID:21250032

Bertolami, O; Paramos, J ^[1]

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1. Instituto Superior Tecnico, Departamento de Fisica, Avenida Rovisco Pais 1, 1049-001 Lisboa (Portugal)

We consider a modified action functional with a nonminimum coupling between the scalar curvature and the matter Lagrangian, and study its consequences on stellar equilibrium. Particular attention is paid to the validity of the Newtonian regime, and on the boundary and exterior matching conditions, as well as on the redefinition of the metric components. Comparison with solar observables is achieved through numerical analysis, and constraints on the nonminimum coupling are discussed.

• OSTI ID: 21250032
• Journal Information: Physical Review. D, Particles Fields, Vol. 77, Issue 8; Other Information: DOI: 10.1103/PhysRevD.77.084018; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOUNDARY CONDITIONS
COMPARATIVE EVALUATIONS
COUPLING
EQUILIBRIUM
LAGRANGIAN FUNCTION
MATTER
METRICS
NUMERICAL ANALYSIS