Izvorni znanstveni članak
Spatially homogeneous Bianchi type-V cosmological models in Brans-Dicke theory
Mohd. Zeyauddin
; Department of Applied Sciences, Sharda University, Sector 23 A, Gurgaon-122017, India
Shri Ram
; Department of Applied Mathematics, Institute of Technology, Banaras Hindu University, Varanasi-2210 05, India
Sažetak
We discuss the field equations of Brans-Dicke theory for a spatially homogeneous and anisotropic Bianchi type-V space-time in the presence of a perfect fluid and obtain their exact solutions by applying the law of variation of Hubble's parameter which yields a constant value of deceleration parameter. The corresponding cosmological models are divided into two categories, (i) singular models with power-law expansion, (ii) non-singular models with exponential expansion. The physical and kinematical behaviors of the cosmological models are discussed. These models are compatible with the results of recent observations.
Ključne riječi
cosmology; Bianchi V models; Hubble's parameter; Brans-Dicke theory
Hrčak ID:
304603
URI
Datum izdavanja:
1.9.2010.
Posjeta: 415 *