Dark side of the universe in the Stephani cosmology

The European Physical Journal C

S. Jalalzadeh¹  N. Riazi¹  S. Sedigheh Hashemi¹ 

[1] Department of Physics, Shahid Beheshti University, G.C., Evin, 19839, Tehran, Iran;

关键词: Cosmological Constant;    Cosmic Microwave Background;    Deceleration Parameter;    Exotic Matter;    Matter Energy Density;   

DOI  :  10.1140/epjc/s10052-014-2995-z

来源: Springer

【 摘 要 】

We investigate the late time acceleration of the universe in the context of the Stephani model. This solution generalizes those of Friedmann–Lemaitre–Robertson–Walker (FLRW) in such a way that the spatial curvature is a function of time. We show that the inhomogeneity of the models can lead to an accelerated evolution of the universe that is analogous to that obtained with FLRW models through a cosmological constant or any exotic component for matter.

【 授权许可】

CC BY