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In this paper, we suggest that a toy model of our universe is based on FRW bulk viscous cosmology in presence of modified Chaplygingas. We obtain modified Friedman equations due to bulk viscosity and Chaplygingas and calculate time-dependent energy density for the special case of flatspace.


FRW Cosmology; Modified Chaplygin Gas; Bulk Viscosity

Cite this paper

J. Naji, R. Darabi and S. Heydari -A Toy Model of Universe,- Open Journal of Microphysics, Vol. 4 No. 1, 2014, pp. 1-5. doi: 10.4236-ojm.2014.41001.

Autor: J. Naji, R. Darabi, S. Heydari

Fuente: http://www.scirp.org/


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