On the tension between growth rate and CMB data

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Quelle, Alba and López Maroto, Antonio (2020) On the tension between growth rate and CMB data. European physical journal C, 80 (5). ISSN 1434-6044

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-020-7941-7




Abstract

We analyze the claimed tension between redshift space distorsions measurements of f(z)sigma 8(z) and the predictions of standard Lambda CDM (Planck 2015 and 2018) cosmology. We consider a dataset consisting of 17 data points extending up to redshift z=1.52 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, Omega m and sigma 8 with respect to the Planck 2018 Lambda CDM parameters is below 2 sigma in all the marginalized confidence regions.


Item Type:Article
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© The Author(s) 2020.
This work has been partially supported by MINECO grant FIS2016-78859-P(AEI/FEDER, UE) and by Red Consolider MultiDark FPA2017-90566-REDC.

Uncontrolled Keywords:Dark energy survey; Galaxy; Sample.
Subjects:Sciences > Physics
ID Code:61352
Deposited On:08 Jul 2020 23:11
Last Modified:08 Jul 2020 23:11

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