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- W4384261802 abstract "In this paper we consider dissipative effects in $Lambda$CDM model, i.e., we consider a universe with cosmological constant having viscous matter. We assume the most general form for bulk viscous coefficient, $zeta=zeta_{0}+zeta_{1}frac{dot{a}}{a}+zeta_{2}frac{ddot{a}}{dot{a}}$ and obtained various constrains for $zeta$'s . We also studied the background study of the model with $zeta=zeta_{0}$ and $zeta=zeta_{1}frac{dot{a}}{a}$. Extracted the value of $zeta_1$ using the Pantheon data and also obtained its thermodynamic evolution and the age." @default.
- W4384261802 created "2023-07-14" @default.
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- W4384261802 date "2023-07-10" @default.
- W4384261802 modified "2023-10-17" @default.
- W4384261802 title "Bulk viscous universe with cosmological constant" @default.
- W4384261802 doi "https://doi.org/10.48550/arxiv.2307.05576" @default.
- W4384261802 hasPublicationYear "2023" @default.
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