Hybrid Stars in a Strong Magnetic Field
In this work the authors study the effects of strong magnetic fields on the particle population and equation of state of hybrid stars using an extended hadronic and quark SU(3) non-linear realization of the sigma model. In this model the degrees of freedom change naturally from hadrons to quarks as the density and/or temperature increases.
Dexheimer, V., R. Negreiros and S. Schramm. "Hybrid Stars in a Strong Magnetic Field.” European Physical Journal A 48 (2012): 189.