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中国物理快报 2008
Constraints on Deceleration Parameter of a 5D Bounce Cosmological Model from Recent Cosmic ObservationsKeywords: 98,80,-k,98,80,Es Abstract: We study the constraint on deceleration parameter q from the recent SNela Gold dataset and observational Hubble data by using a model-independent deceleration parameter q(z) = 1/2 - a/(1 + z)^b under the flve-dimensional bounce cosmological model. For the cases of SNeIa Gold dataset, Hubble data, and their combination, the present results show that the constraints on transition redshift ZT are 0.35-0.07^+0.14,0.68-0.58^+1.47,and 0.55-0.09^+0.18 with 1σ errors,respectively.
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