Vorticity production and survival in magnetized and viscous universes

In Dosopoulou, F., Del Sordo, F., Tsagas, et al., 2012, I showed that both viscosity and magnetic fields can act as sources of cosmic rotation. I provided the first direct indication that magnetism “favors” both the generation and the survival of cosmic rotation demonstrating that magnetized universes can have more residual vorticity than their nonmagnetic counterparts. In Dosopoulou, F., Tsagas, C. G., 2014 , I extended my previous study into the fully relativistic regime and confirmed that magnetic fields generally act as sources of rotational distortions. I provided for the first time fully relativistic analytical solutions showing that magnetized universes are expected to rotate faster and longer than their magnetic-free counterparts. This means that, in principle at least, magnetized cosmologies can start off with considerably smaller amounts of rotation and still sustain appreciable levels of it today.