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A bias in cosmic shear from galaxy selection: results from ray-tracing simulations
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/22
We identify and study a previously unknown systematic effect on cosmic shear measurements, caused by the selection of galaxies used for shape measurement, in particular the rejection of close (blended...
Quantifying high z galaxy selection and visibility with the COSMOPACK tool
z galaxy selection COSMOPACK tool
2009/6/12
Quantifying high z galaxy selection and visibility with the COSMOPACK tool。