Review on the Pseudocomplex General Relativity and Dark Energy

Figure 2

The position of the Innermost Stable Circular Orbit (ISCO) is plotted versus the rotational parameter . The upper curve corresponds to GR and the lower curves correspond to pc-GR. The light gray shaded region corresponds to a forbidden area for circular orbits within pc-GR. For small values of the ISCO in pc-GR follows more or less the one of GR, but at smaller values of . From a certain on stable orbits they are allowed until to the surface of the star (for this limit is approximately and for it is at ).