Interacting dark energy axions in light of the Hubble tension. (arXiv:2108.13317v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Mawas_E/0/1/0/all/0/1">Ennis Mawas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Street_L/0/1/0/all/0/1">Lauren Street</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gass_R/0/1/0/all/0/1">Richard Gass</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wijewardhana_L/0/1/0/all/0/1">L.C.R. Wijewardhana</a>
A current problem within the {Lambda}CDM framework is the tension between
late and early time measurements of the Hubble parameter today, H0. We
entertain the possibility that dark energy modeled as multiple interacting
axion-like-particle species can alleviate the current Hubble tension. We then
test these parameters against the milder tension between the CMB and large
scale structure (LSS) observations of {sigma}8 to ensure that these models do
not exacerbate the tension. We find that there exist parameter spaces for
models of two and three axion-like-particles which can potentially alleviate
the Hubble tension as well as the {sigma}8 tension.
A current problem within the {Lambda}CDM framework is the tension between
late and early time measurements of the Hubble parameter today, H0. We
entertain the possibility that dark energy modeled as multiple interacting
axion-like-particle species can alleviate the current Hubble tension. We then
test these parameters against the milder tension between the CMB and large
scale structure (LSS) observations of {sigma}8 to ensure that these models do
not exacerbate the tension. We find that there exist parameter spaces for
models of two and three axion-like-particles which can potentially alleviate
the Hubble tension as well as the {sigma}8 tension.
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