Volume 653, September 2021
|Number of page(s)||4|
|Section||Cosmology (including clusters of galaxies)|
|Published online||24 September 2021|
Hubble tension and absolute constraints on the local Hubble parameter
Center for Cosmology and Astrophysics, Alikhanian National Laboratory and Yerevan State University, Yerevan, Armenia
2 SIA, Sapienza University of Rome, Rome, Italy
Accepted: 14 August 2021
It is shown, from the two independent approaches of McCrea-Milne and of Zeldovich, that one can fully recover the set equations corresponding to the relativistic equations of the expanding universe of Friedmann-Lemaitre-Robertson-Walker geometry. Although similar, the Newtonian and relativistic set of equations have a principal difference in the content and hence define two flows, local and global ones, thus naturally exposing the Hubble tension at the presence of the cosmological constant Λ. From this, we obtain absolute constraints on the lower and upper values for the local Hubble parameter, √(Λc2/3) ≃ 56.2 and √(Λc2) ≃ 97.3 (km s−1 Mpc−1), respectively. The link to the so-called maximum force–tension issue in cosmological models is revealed.
Key words: distance scale
© ESO 2021
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