2021-$H_0$ Odyssey: Closed, Phantom and Interacting Dark Energy Cosmologies. (arXiv:2101.03129v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Yang_W/0/1/0/all/0/1">Weiqiang Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pan_S/0/1/0/all/0/1">Supriya Pan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Valentino_E/0/1/0/all/0/1">Eleonora Di Valentino</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mena_O/0/1/0/all/0/1">Olga Mena</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Melchiorri_A/0/1/0/all/0/1">Alessandro Melchiorri</a>

Up-to-date cosmological data analyses have shown that textit{(a)} a closed
universe is preferred by the Planck data at more than $99%$ CL, and
textit{(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 $H_0$ 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.

Up-to-date cosmological data analyses have shown that textit{(a)} a closed
universe is preferred by the Planck data at more than $99%$ CL, and
textit{(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 $H_0$ 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.

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