Some new static charged spheres

Abstract

We present new exact solutions for the Einstein-Maxwell system in static spherically symmetric interior spacetimes. For a particular form of the gravitational potentials and the electric field intensity, it is possible to integrate the system in closed form. For specific parameter values it is possible to find new exact models for the EinsteinMaxwell system in terms of elementary functions. Our model includes a particular charged solution found previously; this suggests that our generalised solution could be used to describe a relativistic compact sphere. A physical analysis indicates that the solutions describe realistic matter distributions.