activity
20142023
most citedBulk viscous matter and recent acceleration of the Universe

68 citations · 119 across the 6 of their papers we have counts for

collaborators

6 papers

gr-qc2023

Constraining the bulk viscous coefficients in a viscous universe with cosmological constant

Athira Sasidharan, Titus K Mathew

In this paper we consider dissipative effects in CDM model, i.e., we consider a universe with cosmological constant having viscous matter. We assume the most general form for bu…

gr-qc2018★ 1 cited

Dynamical system analysis and thermal evolution of the causal dissipative model

Jerin Mohan N D, Krishna P B, Athira Sasidharan +1

The dynamical system behaviour and thermal evolution of a homogeneous and isotropic dissipative universe are analyzed. The dissipation is driven by the bulk viscosity an…

gr-qc2018★ 20 cited

Bayesian analysis of bulk viscous matter dominated universe

Athira Sasidharan, N D Jerin Mohan, Moncy V John +1

In our previous works, we have analyzed the evolution of bulk viscous matter dominated universe with a more general form for bulk viscous coefficient, $ζ=ζ_{0}+ζ_{1}\frac{\dot{a}}{…

gr-qc2017★ 1 cited

Bulk viscous matter and recent acceleration of the universe based on causal viscous theory

Jerin Mohan N D, Athira Sasidharan, Titus K Mathew

Evolution of the bulk viscous matter dominated universe has been analysed using the full causal, Israel-Stewart theory for the evolution of bulk viscous pressure in the context of…

gr-qc2015★ 29 cited

Phase space analysis of bulk viscous matter dominated universe

Athira Sasidharan, Titus K Mathew

We consider a Friedmann model of the universe with bulk viscous matter and radiation as the cosmic components. We study the asymptotic properties in the equivalent phase space by c…

gr-qc2014★ 68 cited

Bulk viscous matter and recent acceleration of the Universe

Athira Sasidharan, Titus K. Mathew

We consider a cosmological model dominated by bulk viscous matter with total bulk viscosity coefficient proportional to the velocity and acceleration of the expansion of the univer…