2021-H0 odyssey: closed, phantom and interacting dark energy cosmologies. Issue 10 (6th October 2021)

• Record Type: Journal Article
• Authors: Yang, Weiqiang; Pan, Supriya; Di Valentino, Eleonora; Mena, Olga; Melchiorri, Alessandro
• Is Part Of: Journal of cosmology and astroparticle physics. Volume 2021:Issue 10(2021)
• Publication Date: 2021-10-06
• Subjects: baryon acoustic oscillations -- cosmological parameters from CMBR -- cosmological perturbation theory -- dark energy theory; Cosmology -- Periodicals; Astrophysics -- Periodicals; 523.0105
• DOI: 10.1088/1475-7516/2021/10/008
• Languages: English
• ISSNs: 1475-7516

Abstract

Abstract: Up-to-date cosmological data analyses have shown that (a) a closed universe is preferred by the Planck data at more than 99% CL, and (b) interacting scenarios offer a very compelling solution to the Hubble constant tension. In light of these two recent appealing scenarios, we consider here an interacting dark matter-dark energy model with a non-zero spatial curvature component and a freely varying dark energy equation of state in both the quintessential and phantom regimes. When considering Cosmic Microwave Background data only, a phantom and closed universe can perfectly alleviate the Hubble tension, without the necessity of a coupling among the dark sectors. Accounting for other possible cosmological observations compromises the viability of this very attractive scenario as a global solution to current cosmological tensions, either by spoiling its effectiveness concerning the H0 problem, as in the case of Supernovae Ia data, or by introducing a strong disagreement in the preferred value of the spatial curvature, as in the case of Baryon Acoustic Oscillations.