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Note on "Continuous matter creation and the acceleration of the universe: the growth of density fluctuations"

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Author(s):
Lima, J. A. S. ; Jesus, J. F. ; Oliveira, F. A.
Total Authors: 3
Document type: Journal article
Source: GENERAL RELATIVITY AND GRAVITATION; v. 43, n. 6, p. 6-pg., 2011-06-01.
Abstract

Recently, de Roany and Pacheco (Gen Relativ Gravit, doi:10.1007/s10714-010-1069-2) performed a Newtonian analysis on the evolution of perturbations for a class of relativistic cosmological models with Creation of Cold Dark Matter (CCDM) proposed by the present authors (Lima et al. in JCAP 1011:027, 2010). In this note we demonstrate that the basic equations adopted in their work do not recover the specific (unperturbed) CCDM model. Unlike to what happens in the original CCDM cosmology, their basic conclusions refer to a decelerating cosmological model in which there is no transition from a decelerating to an accelerating regime as required by SNe type Ia and complementary observations. (AU)

FAPESP's process: 04/13668-0 - Cosmology in the era of precision: dark energy, dark matter and background cosmic radiation
Grantee:Jose Ademir Sales de Lima
Support Opportunities: Research Projects - Thematic Grants