A no-go theorem for polytropic spheres in Palatini f(R) gravity

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dc.creatorBarausse, Enrico
dc.creatorSotiriou, Thomas P.
dc.creatorMiller, John C.
dc.date2007-03-27
dc.date2008-01-31
dc.date.accessioned2026-07-07T10:05:50Z
dc.date.available2026-07-07T10:05:50Z
dc.descriptionNon-vacuum static spherically-symmetric solutions in Palatini f(R) gravity are examined. It is shown that for generic choices of f(R), there are commonly-used equations of state for which no satisfactory physical solution of the field equations can be found within this framework, apart from in the special case of General Relativity, casting doubt on whether Palatini f(R) gravity can be considered as giving viable alternatives to General Relativity.
dc.description7 pages, 1 figure. Version accepted for publication as a Fast Track Communication in CQG
dc.identifierhttps://arxiv.org/abs/gr-qc/0703132
dc.identifierhttp://arxiv.org/abs/gr-qc/0703132
dc.identifierClass.Quant.Grav.25:062001,2008
dc.identifierdoi:10.1088/0264-9381/25/6/062001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170128
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleA no-go theorem for polytropic spheres in Palatini f(R) gravity
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