Testing spatial curvature in an anisotropic extension of $w$CDM model with low redshift data
Vikrant Yadav; Rajpal; Pardeep; Manish Yadav; Santosh Kumar Yadav · 2024 · arXiv
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Abstract (excerpt)
In this letter, we report the observational constraints on a Bianchi type I anisotropic extension of $w$CDM model with spatial curvature from observational data including Baryon Acoustic Oscillations (BAO), Cosmic chronometers (CC), Big Bang nucleosynthesis (BBN), Pantheon+ (PP) compilation of SNe Ia and SH0ES Cepheid host distance anchors. The anisotropy is found to be of the order $10^{-13}$, which interplay with spatial curvature to reduce $H_0$ tension by $\sim 1σ$ as found in the analyses with BAO+CC+BBN+PP combination of data, while no significant effect of anisotropy is observed with BA
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Metadata source: arXiv