Dark energy models with variable equation of state parameter

Abstract

The dark energy models with variable equation of state parameter $\omega$ is investigated by using law of variation of Hubble's parameter that yields the constant value of deceleration parameter. The equation of state parameter $\omega$ is found to be time dependent and its existing range for this model is consistent with the recent observations of SN Ia data, SN Ia data (with CMBR anisotropy) and galaxy clustering statistics. The physical significance of the dark energy models has also been discussed.

8 pages, 6 figures

References in corpus (7)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Dynamics of dark energy
• Reconstructing Dark Energy
• Dark Energy and Gravity
• Cosmic Acceleration, Dark Energy and Fundamental Physics
• The dark energy equation of state
• $\Lambda$-CDM Universe: A Phenomenological Approach With Many Possibilities

Cited by in corpus (5)

• Bianchi Type-I Anisotropic Dark Energy Models with Constant Deceleration Parameter
• The Dark Energy Star and Stability analysis
• Vaidya-Tikekar Type Superdense Star Admitting Conformal Motion in Presence of Quintessence Field
• Cosmological constant dominated transit universe from early deceleration to current acceleration phase in Bianchi-V space-time
• Cosmology In Terms Of The Deceleration Parameter. Part II