Cosmology with the Square Kilometre Array by SKA-Japan

TL;DR

The paper discusses how the Square Kilometre Array (SKA) will revolutionize cosmology by enabling high-precision surveys to address fundamental questions about the early universe, dark matter, and cosmic acceleration.

Contribution

It reviews the potential of SKA for cosmology and highlights the specific role of the SKA-Japan Consortium in advancing this science.

Findings

SKA will enable precision cosmology in the next decade.

SKA surveys can address fundamental questions in early universe physics.

The paper outlines the contributions of SKA-Japan to cosmological research.

Abstract

In the past several decades, the standard cosmological model has been established and its parameters have been measured to a high precision, while there are still many of the fundamental questions in cosmology; such as the physics in the very early Universe, the origin of the cosmic acceleration and the nature of the dark matter. The future world's largest radio telescope, Square Kilometre Array (SKA), will be able to open the new frontier of cosmology and will be one of the most powerful tools for cosmology in the next decade. The cosmological surveys conducted by the SKA would have the potential not only to answer these fundamental questions but also deliver the precision cosmology. In this article we briefly review the role of the SKA from the view point of the modern cosmology. The cosmology science led by the SKA-Japan Consortium (SKA-JP) Cosmology Science Working Group is also discussed.