Late Time Behavior of the Cosmological Model in Modified Theory of Gravity

Abstract

We report a viable exponential gravity model for the accelerated expansion of the universe in Bianchi VIh space-time. By considering the estimated physical parameters, the cosmological models are constructed and analyzed in detail. We found that the state parameter in both the models increases to a higher negative range in an early epoch of the phantom domain and it goes to the positive domain at a late phase of the evolution. The effective cosmological constant remains in a positive domain for both models, which is a good sign of accelerating expansion of the universe.