The 2018 Red Book on SKA Cosmology has been published (press release). It complements and extends on the cosmology chapter in the SKA Science Book from 2015.

The Bielefeld Cosmology and Astroparticle Physics group contributed to the study of how SKA will enable us to better probe the most fundamental assumptions of modern cosmology.

The Square Kilometre Array will be able to measure the kinematic radio dipole. A dipolar anisotropy is expected due to the motion of the Solar system with respect to the cosmic rest frame of matter. The figure shows the result of 1000 simulations of the reconstructed dipole measured from a wide area SKA survey, with and without identification of local cosmic structures. This measurement allows for a critical test of the cosmological principle, the foundation of all of modern cosmology.