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arxiv: 0706.2737 · v1 · submitted 2007-06-19 · 🌌 astro-ph

Constraints on the DGP Universe Using Observational Hubble parameter

Hao-Yi Wan , Ze-Long Yi , Tong-Jie Zhang (Department of Astronomy , Beijing Normal University) , Jie Zhou (School of Mathematics This is my paper
classification 🌌 astro-ph
keywords universehubbleparameterrecentacousticagesanalysesbaryon
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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.

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