A five dimensional Kaluza-Klein bulk viscous string cosmological model in Brans-Dicke scalar-tensor theory of gravitation

作者：Naidu R L; Naidu K Dasu; Babu K Shobhan; Reddy D R K^*

来源：Astrophysics and Space Science, 2013, 347(1): 197-201.

DOI：10.1007/s10509-013-1498-y

• Kaluza-Klein model
• Bulk viscosity
• Cosmic strings
• Brans-Dicke theory

In this paper, we have investigated a five dimensional Kaluza-Klein space-time in the frame work of Brans-Dicke (Phys. Rev. 124:925, 1961) scalar-tensor theory of gravitation when the source of energy momentum tensor is a bulk viscous fluid containing one dimensional cosmic strings. We have obtained a determinate solution of the field equations using the special law of variation for Hubble's parameter proposed by Bermann (Nuovo Cimento B 74:182, 1983) We have also used a barotropic equation of state for the pressure and density. Some physical properties of the model are also discussed.

• 出版日期2013-9