Probing Dark Energy through Scale Dependence

@article{Motta2013ProbingDE,
  title={Probing Dark Energy through Scale Dependence},
  author={Mariele Motta and Ignacy Sawicki and Ippocratis D. Saltas and Luca Amendola and Martin Kunz},
  journal={Physical Review D},
  year={2013},
  volume={88},
  pages={124035}
}
We consider the consequences of having no prior knowledge of the true dark energy model for the interpretation of cosmological observations. The magnitude of redshift-space distortions and weak-lensing shear is determined by the metric on the geodesics of which galaxies and light propagate. We show that, given precise enough observations, we can use these data to completely reconstruct the metric on our past lightcone and therefore to measure the scale- and time-dependence of the anisotropic… 
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