Scientific Seminars

Testing the laws of gravity with cosmic shear and redshift space distortions

Fergus Simpson
Institute for Astronomy. University of Edinburgh

2013-02-13    11.00    Merate - POE

Weak gravitational lensing and galaxy peculiar velocities provide complementary probes of General Relativity. I will present recent results from a combination of cosmic shear tomography from the Canada-France Hawaii Telescope Lensing Survey (CFHTLenS) and the growth of structure from the WiggleZ and the 6dF galaxy surveys. This places constraints on both metric potentials which describe general theories of gravity. I will also present preliminary results from a technique which aims to extract cosmological information from galaxy clustering on nonlinear scales.