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Constraints on Deceleration Parameter of a 5D Bounce Cosmological Model from Recent Cosmic Observations |
| LI Jie-Chao;XU Li-Xin;Lü Jian-Bo;CHANG Bao-Rong;LIU Hong-Ya |
| School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 |
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| Cite this article: |
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LI Jie-Chao, XU Li-Xin, Lü Jian-Bo et al 2008 Chin. Phys. Lett. 25 802-804 |
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Abstract 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 five-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+0.14-0.07, 0.68+1.47-0.58, and 0.55+0.18-0.09 with 1σ errors, respectively.
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| Keywords:
98.80.-k
98.80.Es
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Received: 12 October 2007
Published: 30 January 2008
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| PACS: |
98.80.-k
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(Cosmology)
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98.80.Es
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(Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc))
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