Journal
PHYSICAL REVIEW D
Volume 86, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.123001
Keywords
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Funding
- CRUP/Portugal-CUP/France cooperation agreement [AI/F-11, F-FP02/11]
- FCT (Portugal) [PTDC/FIS/111725/2009]
- U. Porto and Santander-Totta
- Danish National Research Foundation
- Ciencia Research Contract
- FCT/MCTES (Portugal)
- POPH/FSE (EC)
- [PP-IJUP2011-212]
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Future redshift-drift measurements (also known as the Sandage-Loeb signal) will be crucial to probe the so called redshift desert, thus providing a new tool for cosmological studies. In this paper we quantify the ability of a future measurement of the Sandage-Loeb signal by a Cosmic-Dynamics-Experiment-like spectrograph to constrain a phenomenological parametrization of dynamical dark energy, specifically by obtaining constraints on w(0) and w(a). We also demonstrate that if used alongside CMB data, the Sandage-Loeb measurements will be able to break degeneracies between expansion parameters, thus greatly improving cosmological constraints.
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