The electromagnetic field of a slowly rotating magnetized neutron star in Saa's gravitation model with torsion

The equations of the electromagnetic field of a slowly rotating magnetized neutron star in Saa's gravitation model with torsion are derived and their exterior solution is investigated. The following conclusions are obtained: first, there is a specific solution for the electromagnetic field when Aô = 0; second, there is no solution at all when Aô ≠ 0. Therefore, we can judge whether or not torsion exists by observing the exterior electromagnetic field of the neutron star.