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Abstract: Using consistenly the compact Friedmann-Lemaitre solutions for an open$k=-0.580$ universe with zero cosmological constant $\Lambda = 0$ we showthat the oberved apparent accelerated expansion is compatible with a timedependent Hubble parameter $H=\dot{R}-R$ equal to $H=87.95$ km-s-Mpc at$t=10.39$ Gys, $H {0}=67.9 \pm 4 $ km-s-Mpc at $t {o}=13.7 \pm 0.2$ Gyrspresent, $H=61.4$ km-s-Mpc at $t=15$ Gyrs and with an apparent globalflatness given by $1=\Omega {m}+\Omega {r}+\Omega {k}$ at all times which,properly averaged from galaxy formation times to present, gives$<\Omega {m}>=0.272$, $<\Omega {r}>=0.005$, $<\Omega {k}>=0.728$. Therefore, nocosmological constant is needed.



Autor: Julio A. Gonzalo

Fuente: https://arxiv.org/







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