English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper, we discuss a model-independent way to obtain the present darkmatter density parameter ($\Omega_{\rm{c,0}}$) by combining gas mass fractionmeasurements in galaxy clusters ($f_{gas}$), type Ia supernovae (SNe Ia)observations and measurements of the cosmic baryon abundance from observationsof absorption systems at high redshifts. Our estimate is $\Omega_{\rm{c,0}} =0.244 \pm 0.013$ ($1\sigma$). By considering the latest local measurement ofthe Hubble constant, we obtain $\Omega_{\rm{M,0}} = 0.285 \pm 0.013$($1\sigma$) for the total matter density parameter. We also investigatedepartures of the evolution of the dark matter density with respect to theusual $a^{-3}$ scaling, as usual in interacting models of dark matter and darkenergy. As the current data cannot confirm or rule out such an interaction, weperform a forecast analysis to estimate the necessary improvements in numberand accuracy of upcoming $f_{gas}$ and SNe Ia observations to detect a possiblenon-minimal coupling in the cosmological dark sector.

An estimate of the dark matter density from galaxy clusters and supernovae data