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

Abstract

Recently, de Roany & Pacheco (2010) 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. 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.

5 pages, 0 figures

References in corpus (5)

• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• An Accelerating Cosmology Without Dark Energy
• Confronting Dark Energy Models using Galaxy Cluster Number Counts
• Cosmology, Thermodynamics and Matter Creation
• Continuous matter creation and the acceleration of the universe: the growth of density fluctuations

Cited by in corpus (11)

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• Newtonian Perturbations on Models with Matter Creation
• Is the continuous matter creation cosmology an alternative to $\Lambda$CDM?
• Assessing the impact of bulk and shear viscosities on large scale structure formation
• CCDM model from quantum particle creation: constraints on dark matter mass
• Cosmic Acceleration from Varying Masses in Five Dimensions
• Matter Creation Cosmologies and Accelerated Expansion
• Continuous matter creation and the acceleration of the universe: a replay
• Accelerating scaling solutions from dark matter particle creation
• K-matter as Mach's principle realization
• Is Dark Energy an Effective Manifestation of Non-equilibrium Thermodynamics? -- Insights from DESI