Bianchi Type VI1 Viscous Fluid Cosmological Model in Wesson´s Theory of Gravitation

Authors : Govardhan S KHADEKAR, Gajanan Rambhau AVACHAR

Pages : 59-66

Doi:10.3906/sag-1206-69

View : 19 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Field equations of a scale invariant theory of gravitation proposed by Wesson [1, 2] are obtained in the presence of viscous fluid with the aid of Bianchi type VIh space-time with the time dependent gauge function insert ignore into journalissuearticles values(Dirac gauge);. It is found that Bianchi type VIh insert ignore into journalissuearticles values(h = 1); space-time with viscous fluid is feasible in this theory, whereas Bianchi type VIh insert ignore into journalissuearticles values(h = -1, 0); space-times are not feasible in this theory, even in the presence of viscosity. For the feasible case, by assuming a relation connecting viscosity and metric coefficient, we have obtained a nonsingular-radiating model. We have discussed some physical and kinematical properties of the models.
Keywords : Gauge function, viscous fluid, scale invariant theory