Astronomy seminar: "Cosmological Seed Magnetic Field from Inflation"

Wed, 09/05/2018 - 14:00 - 15:00
Bharat Ratra, Kansas State University

A cosmological magnetic field of nG strength on Mpc length scales could be the seed magnetic field needed to explain observed few microG large-scale galactic magnetic fields. I first briefly review the observational and theoretical motivations for such a seed field, two galactic magnetic field amplification models, and some non-inflationary seed field generation scenarios. I then discuss an inflation magnetic field generation model. I conclude by mentioning possible extensions of this model as well as potentially observable consequences.

David Rittenhouse Laboratory, A6