Constraints on the DGP Universe using observational Hubble parameter

2007/06/19 by Hao-Yi Wan, Ze-Long Yi, Tong-Jie Zhang +1 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph

paper · pdf · doi:10.1016/j.physletb.2007.06.053

published as Phys.Lett.B651:352-356,2007 · 7 pages with 2 figures and 3 tables. Accepted for publication in Physics Letters B

arxiv created 2007/06/19 · openalex publication_date 2007/06/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work, we use observations of the Hubble parameter from the differential ages of passively evolving galaxies and the recent detection of the Baryon Acoustic Oscillations (BAO) at z 1 = 0.35 to constrain the Dvali–Gabadadze–Porrati (DGP) Universe. For the case with a curvature term, we set a prior h = 0.73 ± 0.03 and the best-fit values suggest a spatially closed Universe . For a flat Universe, we set h free and we get consistent results with other recent analyses.

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