Abstract
Using the data coming from the new 182 Gold type Ia supernova samples, the baryon acoustic oscillation measurement from the Sloan Digital Sky Survey and the H(z) data, we have performed a statistical joint analysis of the DGP brane-world model with a high curvature Gauss–Bonnet term in the bulk. Consistent parameters estimations show that the Gauss–Bonnet-induced gravity model is a viable candidate to explain the observed acceleration of our universe.
Highlights
A variety of cosmological observations suggests a concordant compelling result that our universe is undergoing an accelerated expansion, which is one of the deepest theoretical problems in cosmology [1]
An alternative approach which does not need dark energy to explain the late-time acceleration is motivated by sting theory via the brane-world scenarios
In this work we are going to impose constraints on the model parameters by using the latest SNIa data compiled by Riess et al [20], the baryon acoustic oscillations (BAO)
Summary
Where μmax is the initial density with γ < 1/16. If γ → 0, DGP model will be restored and hmax = μmax = ∞. Using the Induced Gravity model with the GB term of the bulk to describe the physically relevant self-acceleration, the density upper bound indicates that our universe started from a finite redshift zmax instead of a singularity at z = ∞. Where zobs is the redshift we have the observational data and zmax is the starting moment of the universe in this model. The up-to-date gold SN Ia sample was compiled by Riess et al [20] This sample consists of 182 data, in which 16 points with 0.46 < z < 1.39 were obtained recently by the Hubble. SNIa+LSS+H(z) 0.000+−00..000030 2.03+−00..4303 0.27+−00..0033 0.0333+−00..00002245 2.74+−00..1110 0.000+−00..000090 174.04
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