Dr. Shobha Lal
Professor of Mathematics and Computing & Dean Faculty of Engineering and Technology,Jayoti Vidyapeeth Women’s University, Jaipur, India
the orbits of test particles with fixed rest mass ‘m’ and fixed angular momentum ‘L’ and which are not trapped by the black hole, the orbits with the given value of ‘L/m’ and as long as ‘L/m’ is greater than the minimum value for direct circular orbit (particle counter revolving with black hole). If ‘L/m’ has values in the range for which there are no circular orbits in the equatorial plane of the black hole, then the minimum energy for untapped orbits is associated with orbit out of the plane. If the particle is not trapped by a black hole it is possible that gravitational radiation from it may cause to relax a part of its energy orbit.
Keywords: Orbit, Circular Photon, Black Hole, Boyer-Lindquist, Binding Energy