The quest for extragalactic magnetic fields

TL;DR

This paper reviews current observational and theoretical constraints on extragalactic magnetic fields and discusses future prospects for understanding their origins using simulations and observational data.

Contribution

It provides a comprehensive overview of existing knowledge and outlines future directions for constraining the origins of large-scale cosmic magnetic fields.

Findings

Current constraints on extragalactic magnetic fields

Potential of future simulations and observations

Prospects for understanding magnetic field origins

Abstract

We review the observational and theoretical constraints on extragalactic magnetic fields across cosmic environment. In the next decade, the combination of sophisticated numerical simulations and various observational probes might succeed in constraining the still elusive origin of magnetic fields on the largest scales in the Universe.