A Dark Energy Quintessence Model of the Universe

Abstract

In this paper, we have presented a model of the FLRW universe filled with matter and dark energy fluids, by assuming an ansatz that deceleration parameter is a linear function of the Hubble constant. This results in a time-dependent DP having decelerating-accelerating transition phase of the universe. This is a quintessence model ${\omega }_{(de)}\ge -1$. The quintessence phase remains for the period $(0\le z\le 0.5806)$. The model is shown to satisfy current observational constraints. Various cosmological parameters relating to the history of the universe have been investigated.

10 pages, 6 figures

References in corpus (5)

• Dynamics of dark energy
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• WMAP constraints on low redshift evolution of dark energy
• Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
• Aspects of the cosmological "coincidence problem"

Cited by in corpus (4)

• New Tsallis Agegraphic Dark Energy
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• Dynamical system analysis of quintessence dark energy model
• Extended datasamples under the lens of Brane World Theory