A new pressure-parametrization unified dark fluid model
Cosmology and Nongalactic Astrophysics
2017-05-30 v1 General Relativity and Quantum Cosmology
Abstract
We propose a new pressure-parametrization model to explain the accelerated expansion of the late-time Universe by considering the dark contents (dark matter and dark energy) as a unified dark fluid. To realize this model more physically, we reconstruct it with the quintessence and phantom scalar fields, respectively. We use the recent cosmological data to constrain this model, distinguish it from the standard cosmological model and find that the value of the Hubble constant supports the global measurement by the Planck satellite at the confidence level.
Cite
@article{arxiv.1701.03362,
title = {A new pressure-parametrization unified dark fluid model},
author = {Deng Wang and Yang-Jie Yan and Xin-He Meng},
journal= {arXiv preprint arXiv:1701.03362},
year = {2017}
}