The Cosmic Quartet - Cosmological Parameters of a Smoothed Inhomogeneous Spacetime

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dc.creatorBuchert, Thomas
dc.creatorCarfora, Mauro
dc.date2003-12-25
dc.date.accessioned2026-07-07T02:11:44Z
dc.date.available2026-07-07T02:11:44Z
dc.descriptionWe discuss the relation between `bare' cosmological parameters as the true spatial average characteristics that determine the cosmological model, and the parameters interpreted by observers with a `Friedmannian bias', i.e., within a homogeneous space geometry. We may say that the latter are `dressed' by the smoothed-out geometrical inhomogeneities of the surveyed spatial region. We identify two effects that quantify the difference between `bare' and `dressed' parameters: `curvature backreaction' and `volume effect'. An estimate of the latter is given in terms of a simple geometrical example.
dc.description5 pages, LaTeX
dc.identifierhttps://arxiv.org/abs/astro-ph/0312621
dc.identifierhttp://arxiv.org/abs/astro-ph/0312621
dc.identifierProc. 12th JGRG conference, Tokyo 2002, Shibata M. et al. (eds.) (2003), 157-161
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7206
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleThe Cosmic Quartet - Cosmological Parameters of a Smoothed Inhomogeneous Spacetime
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