https://doi.org/10.1140/epjc/s10052-017-4827-4
Regular Article - Theoretical Physics
A new pressure-parametrization unified dark fluid model
1
Theoretical Physics Division, Chern Institute of Mathematics, Nankai University, Tianjin, 300071, China
2
Department of Physics, Nankai University, Tianjin, 300071, China
* e-mail: Cstar@mail.nankai.edu.cn
Received:
14
January
2017
Accepted:
12
April
2017
Published online:
26
April
2017
We propose a new pressure-parametrization model to explain the accelerated expansion of the late-time Universe by considering the baryon matter and 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.
© The Author(s), 2017
