In this work we apply the Landau-Lifshitz pseudotensor flux formalism to the calculation of the total mass and the total angular momentum during the evolution of a binary black hole system. We also compare its performance with the traditional integrations for the global quantities. The results show that the advantage of the pseudotensor flux formalism is the smoothness of the numerical value of the global quantities, especially of the total angular momentum. Although the convergence behavior of the global quantities with the pseudotensor flux method is only comparable with that of the traditional method, the smoothness of its numerical value allows using a larger radius for the surface integration to obtain a more accurate result.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)