CFHTLenS: higher order galaxy–mass correlations probed by galaxy–galaxy–galaxy lensing
CFHTLenS: higher order galaxy–mass correlations probed by galaxy–galaxy–galaxy lensing
We present the first direct measurement of the galaxy–matter bispectrum as a function of galaxy luminosity, stellar mass and type of spectral energy distribution (SED). Our analysis uses a galaxy–galaxy–galaxy lensing technique (G3L), on angular scales between 9 arcsec and 50 arcmin, to quantify (i) the excess surface mass density …