Distinguishing between $w < -1$ Dark Energy Models

Details Distinguishing between $w < -1$ Dark Energy Models Distinguishing between $w < -1$ Dark Energy Models

2007-09-02

arxiv.org/abs/0709.0115v1

AIPConf.Proc.957:453-456,2007

Astronomy and Astrophysics

Astrophysics

4 papes, 2 figures. To appear in the proceedings of PASCOS-07 conference, Imperial College, London, UK, 2-7 July 2007

Scientific paper

10.1063/1.2823826

Recent data and new data analysis methods show that most probably the parameter $w$ in the equation of state of the dark energy is smaller than -1 at low redshifts. We briefly review some of the models with such a property and without violating null energy condition. We investigate the difference between the observables and predictions of these models, and how they can be explored to single out or constrain the origin of dark energy and its properties.

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