Constraints on scalar - field dark energy from the Cosmic Lens All - Sky Survey gravitational lens statistics

Mar, 2004
8 pages
Published in:
  • Astrophys.J.Lett. 607 (2004) L71-L74
e-Print:
Report number:
  • KSUPT-04-01

Citations per year

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Abstract: (arXiv)
We use the statistics of strong gravitational lensing based on the Cosmic Lens All-Sky Survey (CLASS) data to constrain cosmological parameters in a spatially-flat, inverse power-law potential energy density, scalar-field dark energy cosmological model. The lensing-based constraints are consistent with, but weaker than, those derived from Type Ia supernova redshift-magnitude data, and mildly favor the Einstein cosmological constant limit of this dark energy model.
  • gravitation: lens
  • statistics
  • dark energy
  • field theory: scalar
  • energy: density
  • cosmological constant
  • supernova
  • galaxy
  • numerical calculations: interpretation of experiments