Magnetic fields in the early Universe

by Fabrizio Renzi (Dipartimento di Fisica, Sapienza)

Friday 1 Feb 2019, 16:00 → 17:00 Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Magnetic fields are an ubiquitous presence in our Universe but a comprehensive theory describing their generation and evolution is still missing. An intriguing possibility is that these fields are generated in the pre-recombination Universe and then evolve passively until the epoch of structure formation. A clean way to prove the presence of primordial magnetic fields (PMF) is to look at Cosmic Microwave Background (CMB) anisotropies induced by these fields. In this talk, I will review the current and future bounds on PMFs as coming from the observation of the CMB. Finally I will discuss how magnetic fields evolve in the post-recombination regime and their impact on structure formation