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An accelerated closed universe
Authors:Sergio?del?Campo  mailto:sdelcamp@ucv.cl"   title="  sdelcamp@ucv.cl"   itemprop="  email"   data-track="  click"   data-track-action="  Email author"   data-track-label="  "  >Email author,Mauricio?Cataldo,Francisco?Pe?a
Affiliation:(1) Instituto de Física, Pontificia Universidad Católica de Valparaíso, Av Brasil 2950, Valparaíso, Chile;(2) Depto. de Física, Facultad de Ciencias, Universidad del Bío Bío, Av. Collao 1202, Casilla 5-C, Concepción, Chile;(3) Departamento de Ciencias Físicas, Facultad de Ingeniería, Ciencias y Administración, Universidad de la Frontera, Avda. Francisco Salazar 01145, Casilla 54-D, Temuco, Chile
Abstract:
We study a model in which a closed universe with dust and quintessence matter components may look like an accelerated flat Friedmann–Robertson–Walker (FRW) universe at low redshifts. Several quantities relevant to the model are expressed in terms of observed density parameters, OHgrM and OHgrLambda, and of the associated density parameter OHgrQ related to the quintessence scalar field Q.
Keywords:Cosmology  Quintessence  Closed model
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