Constraining dark energy from the abundance of weak gravitational lenses

@article{Weinberg2002ConstrainingDE,
  title={Constraining dark energy from the abundance of weak gravitational lenses},
  author={N. Weinberg and M. Kamionkowski},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2002},
  volume={341},
  pages={251-262}
}
We examine the prospect of using the observed abundance of weak gravitational lenses to constrain the equation-of-state parameter w = p /p of dark energy. Dark energy modifies the distance-redshift relation, the amplitude of the matter power spectrum, and the rate of structure growth. As a result, it affects the efficiency with which dark-matter concentrations produce detectable weak-lensing signals. Here we solve the spherical-collapse model with dark energy, clarifying some ambiguities found… Expand
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