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Constraining thawing and freezing models with cluster number counts

2014/02/28 by N. Chandrachani Devi, J. E. Gonzalez, J. S. Alcaniz · 1 citation
Mathematics · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics #Classical mechanics #Cluster (spacecraft) #Computer science #Cosmology and Gravitation Theories #Field (mathematics) #Function (biology) #Galaxies: Formation, Evolution, Phenomena #Mathematics #Physics #Redshift #Scalar (mathematics) #Scalar field #Statistical physics #astro-ph.CO #gr-qc

paper · pdf · doi:10.1088/1475-7516/2014/06/055

published as JCAP 1406 (2014) 055 · 9 pages, 5 figures, LaTeX

openalex publication_date 2014/06/25 · arxiv created 2014/07/07 · arxiv updated 2014/07/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Measurements of the cluster abundance as a function of mass and redshift provide an important cosmological test that probe not only the expansion rate but also the growth of perturbations. In this paper we adopt a scalar field scenario which admits both thawing and freezing solutions from an appropriate choice of the model parameters and derived all relevant expressions to calculate the mass function and the cluster number density. We discuss the ability of cluster observations to distinguish between these scalar field behaviors and the standard ΛCDM scenario by considering the eROSITA and SPT cluster surveys.

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