| Abstrakt: |
In this paper, we introduce , a lightweight N-body code based on the post-Minkowskian N-body Hamiltonian of Ledvinka et al., which includes general relativistic effects up to first order in Newton’s constant G, and all orders in the speed of light c. is written in and uses a fourth-order Runge–Kutta integration scheme. has also been written to handle an arbitrary number of particles (both massive and massless), with a computational complexity that scales as O(N2). We describe the methods we used to simplify and organize the Hamiltonian, and the tests we performed (convergence, conservation, and analytical comparison tests) to validate the code. [ABSTRACT FROM AUTHOR] |
