Intrinsic alignment-lensing interference as a contaminant of cosmic shear

@inproceedings{Hirata2004IntrinsicAI,
  title={Intrinsic alignment-lensing interference as a contaminant of cosmic shear},
  author={Christopher M. Hirata and Uros Seljak},
  year={2004}
}
0556-2821=20 Cosmic shear surveys have great promise as tools for precision cosmology, but can be subject to systematic errors including intrinsic ellipticity correlations of the source galaxies. The intrinsic alignments are believed to be small for deep surveys, but this is based on intrinsic and lensing distortions being uncorrelated. Here we show that the gravitational lensing shear and intrinsic shear need not be independent: correlations between the tidal field and the intrinsic shear… CONTINUE READING

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