Scale Factor - Cosmic Time Relation and Occurrences of Future Cosmic Singularities with Different Redshift Parametrizations of Dark Energy EoS-s
arXiv:1902.11129 · doi:10.1142/S0217732319502286
Abstract
While modelling our late time cosmically accelerated universe, it is popular to involve different dark energy models, the equation of state of which can be taken as a function of the redshift and some unknown parameters. Barboza and Alcaniz have proposed one of a such kind of dark energy's EoS model. We use some new parametrizations like Feng, Shen, Li, Li I and II and Polynomial parametrizations to get more accurate concepts about the fate of our expanding universe. We try to find how the hypothesis of the fate of our universe behaves in the above background of dark energy models. Possibilities of occurrences of future cosmic singularities are studied.
arXiv comment13 Pages and 21 figures
References in corpus (16)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Accelerating Universes with Scaling Dark Matter
- Is there Supernova Evidence for Dark Energy Metamorphosis ?
- WMAP constraints on low redshift evolution of dark energy
- The case for dynamical dark energy revisited
- Future Supernovae observations as a probe of dark energy
- Constraining the equation of state of the Universe from Distant Type Ia Supernovae and Cosmic Microwave Background Anisotropies
- A parametric model for dark energy
- Gravitational Lensing as a Probe of Quintessence
- Dynamical dark energy: Current constraints and forecasts
- Cosmological constraints on the dark energy equation of state and its evolution
- SN and BAO constraints on (new) polynomial dark energy parametrizations: current results and forecasts
- A New Class of Parametrization for Dark Energy without Divergence
- Constraints on the dark energy equation of state from the separation of CMB peaks and the evolution of alpha
- Evolution of Universe as a Homogeneous System : Changes of Scale Factors with Different Dark Energy EoS-s
- Barboza-Alcaniz Equation of State Parametrization : Constraining the Parameters in Different Gravity Theories