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Variable cosmology with “big-rip”

  • E. Pécontal, T. Buchert, Ph. Di Stefano, Y. Copin, R.K. Mishra (a1) and A. Singh (a2)...

Abstract

In this paper, we have constructed some cosmological models which satisfy the present day observational data and the initial conditions as proposed by Sivaram et al. (Brans & Dicke 1961) with additional requirements G ∝ tn & Λ∝ tn, Gρ/Λ as a constant along with study of big-rip scenerio.

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References

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[1] Arbab, A.I., 2002, Gravitation and Cosmology, 8, 227, 14
[2] Brans, C., & Dicke, R.H., 1961, Phys. Rev., 124, 925; Dicke, R.H. 1962, Phys. Rev., 125
[3] Caldwell, R.R., Kamionkowski, M., & Weinberg, N.N., 2003, Phys. Rev. Lett., 91, 071301
[4] Melchiorri, M., Mersini, L., Odman, C.J., & Tradden, M., 2003, Phys. Rev. D, 68, 043509
[5] Rahman, A., 1990, G.R.G, 22, 655
[6] Zel'dovich, Ya.B., 1968, Sov. Phys. JETP Lett., 6

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