Relativistic stars in f(R) gravity, and absence thereof

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dc.creatorKobayashi, Tsutomu
dc.creatorMaeda, Kei-ichi
dc.date2008-07-16
dc.date2008-08-28
dc.date.accessioned2026-07-07T12:43:55Z
dc.date.available2026-07-07T12:43:55Z
dc.descriptionSeveral f(R) modified gravity models have been proposed which realize the correct cosmological evolution and satisfy solar system and laboratory tests. Although nonrelativistic stellar configurations can be constructed, we argue that relativistic stars cannot be present in such f(R) theories. This problem appears due to the dynamics of the effective scalar degree of freedom in the strong gravity regime. Our claim thus raises doubts on the viability of f(R) models.
dc.description9 pages, 7 figures, v2: references added, minor corrections, version accepted for publication in PRD
dc.identifierhttps://arxiv.org/abs/0807.2503
dc.identifierhttp://arxiv.org/abs/0807.2503
dc.identifierPhys.Rev.D78:064019,2008
dc.identifierdoi:10.1103/PhysRevD.78.064019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220587
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleRelativistic stars in f(R) gravity, and absence thereof
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