Measurement of a Cosmographic Distance Ratio with Galaxy and Cosmic Microwave Background Lensing
Measurement of a Cosmographic Distance Ratio with Galaxy and Cosmic Microwave Background Lensing
We measure the gravitational lensing shear signal around dark matter halos hosting CMASS galaxies using light sources at $z\sim 1$ (background galaxies) and at the surface of last scattering at $z\sim 1100$ (the cosmic microwave background). The galaxy shear measurement uses data from the CFHTLenS survey, and the microwave background …