Testing foundations of modern cosmology with SKA all-sky surveys

TL;DR

SKA all-sky surveys will enable groundbreaking tests of fundamental cosmological principles, including probing superhorizon scales, measuring the cosmic radio dipole with high precision, and challenging existing assumptions of modern cosmology.

Contribution

This paper highlights the potential of SKA surveys to perform transformational tests of cosmology, including measurements at unprecedented scales and redshifts.

Findings

Potential to measure the cosmic radio dipole with high fidelity

Ability to probe cosmological principles at superhorizon scales

Forecasts of transformational tests of cosmology with SKA surveys

Abstract

Continuum and HI surveys with the Square Kilometre Array (SKA) will allow us to probe some of the most fundamental assumptions of modern cosmology, including the Cosmological Principle. SKA all-sky surveys will map an enormous slice of space-time and reveal cosmology at superhorizon scales and redshifts of order unity. We illustrate the potential of these surveys and discuss the prospects to measure the cosmic radio dipole at high fidelity. We outline several potentially transformational tests of cosmology to be carried out by means of SKA all-sky surveys.