Polar orbits in the Kerr space-time
Some special types of test particle motions are studied, using Carter's first integrals for timelike geodesics. After a qualitative discussion of the general features of the orbits, the equations of motion are solved analytically for the case of spherical orbits (with constant coordinate radius) and some subcases of nonspherical orbits.
scientific article; zbMATH DE number 4036686