Galactic synchrotron emission and the FIR-radio correlation at high redshift

Understand

Galactic magnetic fields in the local Universe are strong and omnipresent.

• There is mounting evidence that galaxies were magnetized already in the early Universe.
• Theoretical scenarios including the turbulent small-scale dynamo predict magnetic energy densities comparable to the one of turbulence.
• Based on the assumption of this energy equipartition, we determine the galactic synchrotron flux as a function of redshift z.