Degeneracy between CCDM and \(\Lambda\)CDM cosmologies

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 di...

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Bibliographic Details
Published inarXiv.org
Main Authors Marcelo Vargas dos Santos, Waga, Ioav, Ramos, Rudnei O
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 16.12.2014
Subjects
Cold dark matter
Cosmology
Dark matter
Perturbation methods
Skewness
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1412.5203