A Dynamical Approach to the Exterior Geometry of a Perfect Fluid as a   Relativistic Star
  In this article, we assume that a cold charged perfect fluid is constructing a spherical relativistic star. Our purpose is the investigation of the dynamical properties of its exterior geometry, through simulating the geodesic motion of a charged test particle, while moving on the star. 
Mohsen Fathi
gr-qc physics.class-ph