20 citations · 56 across the 6 of their papers we have counts for
5 papers · 1 filter
Confronting Phantom Dark Energy with Observations
Pao-Yu Wang, Chien-Wen Chen, Pisin Chen
We confront two types of phantom dark energy potential with observational data. The models we consider are the power-law potential, , and the exponential potential, $…
Confronting Tracker Field Quintessence with Data
Pao-Yu Wang, Chien-Wen Chen, Pisin Chen
We confront tracker field quintessence with observational data. The potentials considered in this paper include , , , $\exp(βM_{p…
Comment on "w and w' of scalar field models of dark energy" [arXiv:astro-ph/0510598]
Chien-Wen Chen, Je-An Gu, Pisin Chen
We comment on the calculation mistake in the paper "w and w' of scalar field models of dark energy" by Takeshi Chiba [arXiv:astro-ph/0510598], where w is the dark energy equation o…
Constraints on the Phase Plane of the Dark Energy Equation of State
Chien-Wen Chen, Pisin Chen, Je-An Gu
Classification of dark energy models in the plane of w and w', where w is the dark energy equation of state and w' its time-derivative in units of the Hubble time, has been studied…
Consistency Test of Dark Energy Models
Chien-Wen Chen, Je-An Gu, Pisin Chen
Recently we proposed a new approach to the testing of dark energy models based on the observational data. In that work we focused particularly on quintessence models for demonstrat…