Abstract
A five dimensional Kaluza-Klein dark energy model with variable EoS parameter is investigated in the scale co-variant theory of gravitation proposed by Canuto et al. (in Phys. Rev. 39:429, 1977) in a five dimensional Kaluza-Klein space-time in the presence of perfect fluid source. Using the special law of variation for Hubble’s parameter proposed by Berman (in Nuovo Cimento B 74:183, 1983), we have obtained a determinate solution which represents a dark energy cosmological model in the theory. We have also used the result that the scalar expansion is proportional to shear scalar of the space-time. It is observed that the EoS parameter, skewness parameter in the model turn out to be functions of cosmic time. Some physical and Kinematical properties of the model are also discussed.
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Reddy, D.R.K., Santhi Kumar, R. Kaluza-Klein dark energy cosmological model in scale Co-variant Theory of Gravitation. Astrophys Space Sci 349, 485–489 (2014). https://doi.org/10.1007/s10509-013-1656-2
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DOI: https://doi.org/10.1007/s10509-013-1656-2