Cosmography with cluster strong lenses: the influence of substructure and line-of-sight haloes

  title={Cosmography with cluster strong lenses: the influence of substructure and line-of-sight haloes},
  author={Anson D’Aloisio and Priyamvada Natarajan},
  journal={Monthly Notices of the Royal Astronomical Society},
We explore the use of strong lensing by galaxy clusters to constrain the dark energy equation of state and its possible time variation. The cores of massive clusters often contain several multiply imaged systems of background galaxies at different redshifts. The locations of lensed images can be used to constrain cosmological parameters due to their dependence on the ratio of angular diameter distances. We employ Monte Carlo simulations of cluster lenses, including the contribution from… Expand
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