Constraining Newtonian stellar configurations in f(R) theories of gravity

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dc.creatorMultamaki, T.
dc.creatorVilja, I.
dc.date2007-09-21
dc.date2007-10-03
dc.date.accessioned2026-07-07T11:19:29Z
dc.date.available2026-07-07T11:19:29Z
dc.descriptionWe consider general metric $f(R)$ theories of gravity by solving the field equations in the presence of a spherical static mass distribution by analytical perturbative means. Expanding the field equations systematically in $\cO(G)$, we solve the resulting set of equations and show that $f(R)$ theories which attempt to solve the dark energy problem very generally lead to $γ_{PPN}=1/2$ in the solar system. This excludes a large class of theories as possible explanations of dark energy. We also present the first order correction to $γ_{PPN}$ and show that it cannot have a significant effect.
dc.description4 pages; v2: added references, modified abstract and introduction, conclusions unchanged
dc.identifierhttps://arxiv.org/abs/0709.3422
dc.identifierhttp://arxiv.org/abs/0709.3422
dc.identifierPhys.Lett.B659:843-846,2008
dc.identifierdoi:10.1016/j.physletb.2007.12.022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193696
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleConstraining Newtonian stellar configurations in f(R) theories of gravity
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