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The mitigation of intrinsic alignments in future high precision weak lensing surveys

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If you have a question about this talk, please contact Sean McGee.

I will discuss the source and mitigation of various systematics in weak lensing surveys, paying particular attention to the intrinsic alignment (IA) of background galaxies. IA is an astrophysical systematic which mimics a weak lensing signal, biasing estimates of cosmological parameters. I will present preliminary results from my work using Gaussian random simulations to investigate the impact of IA on future high precision surveys, such as those conducted with Euclid and the LSST , and discuss the benefit of including galaxy position information when simultaneously constraining cosmology and IA.

This talk is part of the Astrophysics Seminars series.

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