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- W2895884753 abstract "In this paper, we study the characteristic scale of transition to cosmic homogeneity of the universe, $mathcal{R}_H$, as a standard ruler, to constrain cosmological parameters on mock galaxy catalogues. We use mock galaxy catalogues that simulate the CMASS galaxy sample of the BOSS survey in the redshift range $0.43 leq z leq 0.7$. In each redshift bin we obtain the homogeneity scale, defined as the scale at which the universe becomes homogeneous to $1%$, i.e. $D_2(mathcal{R}_H) = 2.97$. With a simple Fisher analysis, we find that the performance of measuring the cosmological parameters with either the position of the BAO peak or the homogeneity scale is comparable. We show that $mathcal{R}_H$ has a dependence on the galaxy bias. If the accuracy and precision of this bias is achieved to $1%$, as expected for future surveys, then $mathcal{R}_H$ is a competitive standard ruler." @default.
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- W2895884753 date "2018-12-11" @default.
- W2895884753 modified "2023-10-16" @default.
- W2895884753 title "The scale of cosmic homogeneity as a standard ruler" @default.
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- W2895884753 doi "https://doi.org/10.1088/1475-7516/2018/12/014" @default.
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