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astro-ph.CO2013
Quasi-isotropic expansion for a two-fluid cosmological model containing radiation and string gas
I. M. Khalatnikov, A. Yu. Kamenshchik, A. A. Starobinsky
The quasi-isotropic expansion for a simple two-fluid cosmological model, including radiation and string gas is constructed. The first non-trivial order expressions for the metric c…
astro-ph.CO2011★ 20 cited
Spherical `Top-Hat' Collapse in general Chaplygin gas dominated universes
R. A. A. Fernandes, J. P. M. de Carvalho, A. Yu. Kamenshchik +2
We expand previous works on the spherical `top-hat' collapse (SC-TH) framework in generalized Chaplygin gas (gCg) dominated universes. Here we allow the collapse in all energetic c…