Cosmology with shear ratios: a joint study of weak lensing and spectroscopic redshift datasets
The ratio click here of the average tangential shear signal of different weak lensing source populations around the same lens galaxies, also known as a shear ratio, provides an important test of lensing systematics and a potential source of cosmological information.In this paper we measure shear ratios of three current weak lensing surveys --KiDS,