The common origin of the Hubble tension and anomalous cold spots in the CMB. (arXiv:2004.02937v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Kovacs_A/0/1/0/all/0/1">András Kovács</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beck_R/0/1/0/all/0/1">Róbert Beck</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Szapudi_I/0/1/0/all/0/1">István Szapudi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Csabai_I/0/1/0/all/0/1">István Csabai</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Racz_G/0/1/0/all/0/1">Gábor Rácz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dobos_L/0/1/0/all/0/1">László Dobos</a>
The standard cosmological paradigm narrates a reassuring story of a universe
currently dominated by an enigmatic dark energy component. Disquietingly, its
universal explaining power has recently been challenged by, above all, the
$sim4sigma$ tension in the values of the Hubble constant. A more durable yet
less studied other anomaly is the repeated observation of integrated
Sachs-Wolfe imprints $sim5times$ stronger than expected in the $Lambda$CDM
model from $R_v > 100,h^{-1}Mpc$ super-structures. Here we show that the
inhomogeneous AvERA model of emerging curvature is capable of telling a
plausible albeit radically different story that explains both observational
anomalies without dark energy. We demonstrate that while stacked imprints of
$R_v > 100,h^{-1}Mpc$ supervoids in cosmic microwave background temperature
maps can discriminate between the AvERA and $Lambda$CDM models, their
characteristic differences may remain hidden using alternative void definitions
and stacking methodologies. Testing the extremes, we then also show that the
CMB Cold Spot can plausibly be explained in the AvERA model as an ISW imprint.
We hence conclude that the anomalous imprint of supervoids may well be the
canary in the coal mine, and existing observational evidence for dark energy
should be re-interpreted to further test alternative models.
The standard cosmological paradigm narrates a reassuring story of a universe
currently dominated by an enigmatic dark energy component. Disquietingly, its
universal explaining power has recently been challenged by, above all, the
$sim4sigma$ tension in the values of the Hubble constant. A more durable yet
less studied other anomaly is the repeated observation of integrated
Sachs-Wolfe imprints $sim5times$ stronger than expected in the $Lambda$CDM
model from $R_v > 100,h^{-1}Mpc$ super-structures. Here we show that the
inhomogeneous AvERA model of emerging curvature is capable of telling a
plausible albeit radically different story that explains both observational
anomalies without dark energy. We demonstrate that while stacked imprints of
$R_v > 100,h^{-1}Mpc$ supervoids in cosmic microwave background temperature
maps can discriminate between the AvERA and $Lambda$CDM models, their
characteristic differences may remain hidden using alternative void definitions
and stacking methodologies. Testing the extremes, we then also show that the
CMB Cold Spot can plausibly be explained in the AvERA model as an ISW imprint.
We hence conclude that the anomalous imprint of supervoids may well be the
canary in the coal mine, and existing observational evidence for dark energy
should be re-interpreted to further test alternative models.
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