Regular Article - Theoretical Physics
On the tension between growth rate and CMB data
Departamento de Física Teórica and Instituto de Física de Partículas y del Cosmos (IPARCOS), Universidad Complutense de Madrid, 28040, Madrid, Spain
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Accepted: 15 April 2020
Published online: 6 May 2020
We analyze the claimed tension between redshift space distorsions measurements of and the predictions of standard CDM (Planck 2015 and 2018) cosmology. We consider a dataset consisting of 17 data points extending up to redshift and corrected for the Alcock-Paczynski effect. Thus, calculating the evolution of the growth factor in a wCDM cosmology, we find that the tension for the best fit parameters w, and with respect to the Planck 2018 CDM parameters is below in all the marginalized confidence regions.
© The Author(s), 2020