Degeneracy between CCDM and $\Lambda$CDM cosmologies

Abstract

The creation of cold dark matter cosmology model is studied beyond the linear perturbation level. The skewness is explicitly computed and the results are compared to those from the $\Lambda$CDM model. It is explicitly shown that both models have the same signature for the skewness and cannot be distinguished by using this observable.

5 pages, 2 figures. Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO)

References in corpus (7)

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• Cosmology and Astrophysics from Relaxed Galaxy Clusters II: Cosmological Constraints
• Matter creation and cosmic acceleration
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Cited by in corpus (2)

• Entropy production due to adiabatic particle creation in a holographic dissipative cosmology
• Evolution of dissipative and non-dissipative universes in holographic cosmological models with a power-law term