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arXiv:0706.2737 (astro-ph)
[Submitted on 19 Jun 2007]

Title:Constraints on the DGP Universe Using Observational Hubble parameter

Authors:Hao-Yi Wan, Ze-Long Yi, Tong-Jie Zhang (Department of Astronomy, Beijing Normal University), Jie Zhou (School of Mathematics, Beijing Normal University)
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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 $h=0.73\pm0.03$ 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.
Comments: 7 pages with 2 figures and 3 tables. Accepted for publication in Physics Letters B
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.2737 [astro-ph]
  (or arXiv:0706.2737v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.2737
Journal reference: Phys.Lett.B651:352-356,2007
Related DOI: https://doi.org/10.1016/j.physletb.2007.06.053

Submission history

From: Tong-Jie Zhang Dr. [view email]
[v1] Tue, 19 Jun 2007 08:56:32 UTC (42 KB)
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