Redshift drift test of exotic singularity universes

Abstract

We discuss how dynamical dark energy universes with exotic singularities may be distinguished from the standard $\Lambda$CDM model on the basis of their redshift drift signal, for which measurements both in the acceleration phase and in the deep matter era will be provided by forthcoming astrophysical facilities. Two specific classes of exotic singularity models are studied: sudden future singularity models and finite scale factor singularity models. In each class we identify the models which can mimic $\Lambda$CDM and play the role of dark energy as well as models for which redshift drift signals are significantly different from $\Lambda$CDM and the test can differentiate between them.

6 pages, 8 figures, Revtex 4-1, references added

References in corpus (14)

• Cosmic dynamics in the era of Extremely Large Telescopes
• Are loop quantum cosmos never singular?
• Classification of cosmological milestones
• Barotropic index w-singularities in cosmology
• The time evolution of cosmological redshift as a test of dark energy
• Strings at future singularities
• How far is it to a sudden future singularity of pressure?
• Redshift Drift in LTB Void Universes
• $w$-cosmological singularities
• Singularities in loop quantum cosmology
• Tachyon cosmology, supernovae data and the Big Brake singularity
• Will the tachyonic Universe survive the Big Brake?
• Density preturbations in a finite scale factor singularity universe
• Pathway to the Square Kilometre Array - The German White Paper -

Cited by in corpus (8)

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• Constraining the dark energy models with H(z) data: an approach independent of $H_0$
• Constraining the Asymptotically Safe Cosmology: cosmic acceleration without dark energy
• Forecast and analysis of the cosmological redshift drift
• Variations of the fine-structure constant $\alpha$ in exotic singularity models
• Dark energy and dark matter perturbations in singular universes
• Testing Lambert$W$ equation of state with observational Hubble parameter data
• Dynamical dark energy models with singularities in the view of the forthcoming results of the growth observations