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Phase plane analysis and statefinder diagnostic of agegraphic dark energy in 5D Brans-Dicke cosmology

2015/02/09 by Amin Salehi, Hossein Farajollahi, Salehi, Amin +5
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #gr-qc

paper · pdf · doi:10.48550/arxiv.1502.02648

16 pages, 17 figures. arXiv admin note: substantial text overlap with arXiv:1201.0007

arxiv created 2015/02/09 · arxiv updated 2016/09/26

Abstract

We present an autonomous phase-plane describing the evolution of field equations containing an agegraphic dark energy in 5D Brans- Dicke cosmology. To observationally verify the numerical results, we simultaneously solve the equations by constraining the model parameters with SNe Ia data. We find conditions for the existence and stability of the critical points (states of the universe) and numerically examine the cosmological parameters. We also investigate the model by means of statefinder diagnostic.

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