Gravitational energy and cosmic acceleration

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dc.creatorWiltshire, David L.
dc.date2007-12-24
dc.date.accessioned2026-07-07T11:39:40Z
dc.date.available2026-07-07T11:39:40Z
dc.descriptionCosmic acceleration is explained quantitatively, as an apparent effect due to gravitational energy differences that arise in the decoupling of bound systems from the global expansion of the universe. "Dark energy" is a misidentification of those aspects of gravitational energy which by virtue of the equivalence principle cannot be localised, namely gradients in the energy due to the expansion of space and spatial curvature variations in an inhomogeneous universe. A new scheme for cosmological averaging is proposed which solves the Sandage-de Vaucouleurs paradox. Concordance parameters fit supernovae luminosity distances, the angular scale of the sound horizon in the CMB anisotropies, and the effective comoving baryon acoustic oscillation scale seen in galaxy clustering statistics. Key observational anomalies are potentially resolved, and unique predictions made, including a quantifiable variance in the Hubble flow below the scale of apparent homogeneity.
dc.description9 pages, 2 figures. An essay which received Honorable Mention in the 2007 GRF Essay Competition. To appear in a special issue of Int. J. Mod. Phys. D
dc.identifierhttps://arxiv.org/abs/0712.3982
dc.identifierhttp://arxiv.org/abs/0712.3982
dc.identifierInt.J.Mod.Phys.D17:641-649,2008
dc.identifierdoi:10.1142/S0218271808012383
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200003
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleGravitational energy and cosmic acceleration
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