Observational constraints on teleparallel dark energy
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Department of Physics, National Tsing Hua University, Hsinchu, Taiwan 300, R.O.C. (China)
We use data from Type Ia Supernovae (SNIa), Baryon Acoustic Oscillations (BAO), and Cosmic Microwave Background (CMB) observations to constrain the recently proposed teleparallel dark energy scenario based on the teleparallel equivalent of General Relativity, in which one adds a canonical scalar field, allowing also for a nonminimal coupling with gravity. Using the power-law, the exponential and the inverse hyperbolic cosine potential ansatzes, we show that the scenario is compatible with observations. In particular, the data favor a nonminimal coupling, and although the scalar field is canonical the model can describe both the quintessence and phantom regimes.
- OSTI ID:
- 22279718
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 01 Vol. 2012; ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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