Galaxy biasing

The statistical analysis of the lensing effects coupled with the statistical analysis of the number counts is a tool to probe directly the relation between the mass and the light. In the following paper it is showed that with a sample of 25 square degrees, one can measure a scale variation of the bias larger than 20% in the 1' to 10' scale range, almost independently of the cosmological parameters, the redshift distribution of the galaxies, and the power spectrum. "Scale dependence of the bias investigated by weak lensing" by L. Van Waerbeke (CITA)