Constraints on deceleration parameter of a 5D bounce cosmological model from recent cosmic observations
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论文类型：期刊论文
发表时间：2008-02-01
发表刊物：CHINESE PHYSICS LETTERS
收录刊物：ISTIC、SCIE
卷号：25
期号：2
页面范围：802-804
ISSN号：0256-307X
摘要：We study the constraint on deceleration parameter q from the recent SNeIa Gold dataset and observational Hubble data by using a model-independent deceleration parameter q(z) = 1/2 - a/(1 + z)(b) under the live-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 z(T) are 0.35(-0.07)(+0.14), 068(-0.58)(+1.47), and 0.55(-0.09)(+0.18) with 1 sigma errors, respectively.