E. BATTANER (Université de Grenade, Espagne)
We assume that magnetic fields were produced at Inflation and that large coherence magnetic cells have survived along the
resistive Radiation Dominated era. Introducing magnetic fields in the energy-momentum tensor we produce perturbations in the
relativistic fluid, Maxwell and Einstein field equations to study the role of magnetic fields in the formation of the large scale structure
and the formation of CMB anisotropies. In contrast with other energy densities, the magnetic energy density acts anisotropically and
introduce a tendency of forming loops and periodic structures. It is seen that comoving magnetic strengths of the order of nanogauss
cannot be neglected at all at Recombination.
