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pro vyhledávání: '"D Jerin"'
We study the late acceleration of the universe by incorporating bulk viscous matter with the running vacuum. The vacuum energy density varies as the squares of the Hubble parameter ($\rho_{\Lambda}\propto H^2$), and the coefficient of bulk viscosity
Externí odkaz:
http://arxiv.org/abs/2204.12097
Autor:
D, Jerin Mohan N, Mathew, Titus K
A dissipative model of the Universe based on the causal relativistic truncated Israel-Stewart theory is analysed in the context of recent accelerated expansion of the Universe. The bulk viscosity and relaxation time are taken as $\xi=\alpha\rho^s$ an
Externí odkaz:
http://arxiv.org/abs/2010.15355
The dynamical system behaviour and thermal evolution of a homogeneous and isotropic dissipative universe are analyzed. The dissipation is driven by the bulk viscosity $\xi = \alpha \rho^s $ and the evolution of bulk viscous pressure is described usin
Externí odkaz:
http://arxiv.org/abs/1807.04041
In our previous works, we have analyzed the evolution of bulk viscous matter dominated universe with a more general form for bulk viscous coefficient, $\zeta=\zeta_{0}+\zeta_{1}\frac{\dot{a}}{a}+\zeta_{2}\frac{\ddot{a}}{\dot{a}}$ and also carried out
Externí odkaz:
http://arxiv.org/abs/1803.08235
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 recent acceleration of the universe. The form of bulk viscosity is tak
Externí odkaz:
http://arxiv.org/abs/1708.02437
Autor:
Shareef, V. Mohammed1 (AUTHOR), Mohan, N. D. Jerin1 (AUTHOR), Mathew, Titus K.1,2 (AUTHOR) titus@cusat.ac.in
Publikováno v:
Astrophysics & Space Science. May2022, Vol. 367 Issue 5, p1-8. 8p.
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 8, Pp 1-9 (2018)
Abstract In our previous works, we have analyzed the evolution of bulk viscous matter dominated universe with a more general form for bulk viscous coefficient, $$\zeta =\zeta _{0}+\zeta _{1}\frac{\dot{a}}{a}+\zeta _{2}\frac{\ddot{a}}{\dot{a}}$$ ζ=ζ
Externí odkaz:
https://doaj.org/article/e4d8def6e02043a49af1115de482d984
Akademický článek
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Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 12, Pp 1-13 (2017)
Abstract The evolution of the bulk viscous matter dominated universe has been analysed using the full causal theory for the evolution of the viscous pressure in the context of the recent acceleration of the universe. The form of the viscosity is take
Externí odkaz:
https://doaj.org/article/e2efabb7e1de4c8882a24153643ea100
Publikováno v:
Astrophysics and Space Science. 367
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dd810f39dda7b30a5de862aa6843656
https://doi.org/10.1007/s10509-022-04072-3
https://doi.org/10.1007/s10509-022-04072-3