Cosmic acceleration and phantom crossing in $f(T)$-gravity

Details Cosmic acceleration and phantom crossing in $f(T)$-gravity Cosmic acceleration and phantom crossing in $f(T)$-gravity

2011-12-17

arxiv.org/abs/1112.4700v1

Physics

General Physics

20 pages, 18 figures, Will appear in Astrophys Space Sci

Scientific paper

10.1007/s10509-011-0916-2

In this paper, we propose two new models in $f(T)$ gravity to realize universe acceleration and phantom crossing due to dark torsion in the formalism. The model parameters are constrained and the observational test are discussed. The best fit results favors an accelerating universe with possible phantom crossing in the near past or future followed respectively by matter and radiation dominated era.

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