Simulated magnetic field expulsion in neutron star cores

J.G.E. and N.R. are funded by an NWO Vidi grant (PI: Rea). J.A.P. is funded by the grants AYA2013-42184-P and Prometeu/2014/6. N.R. and D.V. acknowledge support from the grants AYA2012-39303 and SGR 2014-1073. K.G. is supported by the Ramon y Cajal Programme of the Spanish Ministerio de Ciencia e Innovacion. Authors also wish to acknowledge NewCompStar, COST action MP1304 for partial funding of this research.