  RX J1856.5-3754 has been proposed as a strange star candidate due to its very
small apparent radius measured from its X-ray thermal spectrum. However, its
optical emission requires a much larger radius and thus most of the stellar
surface must be cold and undetectable in X-rays. In the case the star is a
neutron star such a surface temperature distribution can be explained by the
presence of a strong toroidal field in the crust (Perez-Azorin et al. 2006,
Geppert et al. 2006). We consider a similar scenario for a strange star with a
thin baryonic crust to determine if such a magnetic field induced effect is
still possible.
