Izvorni znanstveni članak
Bianchi type-V cosmological models with constant deceleration parameter in scalar-tensor theory
R. K. Tiwari
; Department of Mathematics, Government Model Science College Rewa, (M.P.)-486001, India
Sažetak
Einstein's field equations are obtained for Bianchi type-V space-time filled with perfect fluid, and are investigated within the framework of scalar-tensor theory of gravitation proposed by Saez and Ballester. By using a special law of variation for Hubble's parameter, a constant value of the deceleration parameter was obtained. Two different physically viable models of the universe are obtained and one is found to be consistent with the recent observations of type Ia supernovae. Physical and kinematical properties of the models are also discussed.
Ključne riječi
Bianchi type-V; Hubble's parameter; deceleration parameter; Saez-Ballester theory
Hrčak ID:
304570
URI
Datum izdavanja:
1.3.2009.
Posjeta: 126 *