The Homogeneity Scale of the universe
Pierros Ntelis

TL;DR
This paper investigates the scale at which the universe appears homogeneous using galaxy data, confirming the Cosmological Principle and examining how this scale evolves with redshift.
Contribution
It provides the first precise measurement of the universe's homogeneity scale using BOSS CMASS data and tests its evolution across redshift.
Findings
Homogeneity scale is approximately 64.3 h^{-1} Mpc.
Universe is homogeneous on scales larger than this scale.
Results support the Cosmological Principle within the DM model.
Abstract
In this study, we probe the cosmic homogeneity with the BOSS CMASS galaxy sample in the redshift region of . We use the normalised counts-in-spheres estimator and the fractal correlation dimension to assess the homogeneity scale of the universe. We verify that the universe becomes homogenous on scales greater than , consolidating the Cosmological Principle with a consistency test of CDM model at the percentage level. Finally, we explore the evolution of the homogeneity scale in redshift.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Code & Models
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCosmology and Gravitation Theories · Galaxies: Formation, Evolution, Phenomena · Astronomy and Astrophysical Research
