Addressing $H_0$ tension by means of VCDM. (arXiv:2009.08718v2 [astro-ph.CO] UPDATED)

Addressing $H_0$ tension by means of VCDM. (arXiv:2009.08718v2 [astro-ph.CO] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Felice_A/0/1/0/all/0/1">Antonio De Felice</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mukohyama_S/0/1/0/all/0/1">Shinji Mukohyama</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pookkillath_M/0/1/0/all/0/1">Masroor C. Pookkillath</a>

In this letter we propose a reduction of the $H_0$ tension puzzle by means of
a theory of minimally modified gravity which is dubbed VCDM. After confronting
the theory with the data, a transition in the expansion history of the universe
in the low-redshift $zsimeq 0.3 $ is found. From the bestfit values the total
fitness parameter is improved by $Delta chi^2=33.41$, for the data set
considered. We then determine the local Hubble expansion rate today by taking
into account proper calibration of the absolute magnitude of higher redshift
supernovae with the use of the distance ladder information. The resulting local
Hubble expansion rate today is $H^{rm{loc}}_0=73.69pm1.4$. Hence the tension
is reduced to $1.3,sigma$ within the VCDM theory.

In this letter we propose a reduction of the $H_0$ tension puzzle by means of
a theory of minimally modified gravity which is dubbed VCDM. After confronting
the theory with the data, a transition in the expansion history of the universe
in the low-redshift $zsimeq 0.3 $ is found. From the bestfit values the total
fitness parameter is improved by $Delta chi^2=33.41$, for the data set
considered. We then determine the local Hubble expansion rate today by taking
into account proper calibration of the absolute magnitude of higher redshift
supernovae with the use of the distance ladder information. The resulting local
Hubble expansion rate today is $H^{rm{loc}}_0=73.69pm1.4$. Hence the tension
is reduced to $1.3,sigma$ within the VCDM theory.

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