Radiation from falling particles Onto compact objects

Abstract

In this thesis we studied the radiation of particles infalling into compact objects where General Relativity Field Equations (GRFEs) were used. In particular the Schwarzschild and Kerr black holes were considered. The radiation is considered to occur at the horizons due to the strong gravity of the compacts. The calculated total energy radiated and the time of fall into the black holes depend both on the black hole and the falling particles dynamical parameters specification. For mathematical analysis the latest Mathematica 11.3 was used. The results are in good agreement with the works of the others. Specially, the falling of particles into Schwarzschild black hole fits with that of the results of Zerilli (1970).