Cosmological models with constant deceleration parameter and bulk viscous mode

1993 ◽  
Vol 25 (6) ◽  
pp. 561-565 ◽  
Author(s):  
Aroonkumar Beesham
Keyword(s):  
Deceleration Parameter ◽  
Cosmological Models ◽  
Constant Deceleration Parameter ◽  
Bulk Viscous

Bulk viscous cosmological models of universe with variable deceleration parameter in Lyra’s Manifold

2009 ◽  
Vol 321 (3-4) ◽  
pp. 233-239 ◽  
Author(s):  
N. Ibotombi Singh ◽  
S. Romaleima Devi ◽  
S. Surendra Singh ◽  
A. Sumati Devi
Keyword(s):  
Deceleration Parameter ◽  
Cosmological Models ◽  
Variable Deceleration Parameter ◽  
Lyra’S Manifold ◽  
Bulk Viscous

scholarly journals Bianchi Type-V Bulk Viscous Cosmic String inf(R,T)Gravity with Time Varying Deceleration Parameter

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Bïnaya K. Bishi ◽  
K. L. Mahanta
Keyword(s):  
Deceleration Parameter ◽  
Bianchi Type ◽  
Cosmic Strings ◽  
The Other ◽  
Time Varying ◽  
Constant Deceleration Parameter ◽  
Linearly Varying Deceleration Parameter ◽  
Bulk Viscous ◽  
Type V ◽  
Bianchi Type V

We study the Bianchi type-V string cosmological model with bulk viscosity inf(R,T)theory of gravity by considering a special form and linearly varying deceleration parameter. This is an extension of the earlier work of Naidu et al., 2013, where they have constructed the model by considering a constant deceleration parameter. Here we find that the cosmic strings do not survive in both models. In addition we study some physical and kinematical properties of both models. We observe that in one of our models these properties are identical to the model obtained by Naidu et al., 2013, and in the other model the behavior of these parameters is different.

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