Fig. 5
Offset estimated with GYOTO in μas versus the distance | xs | of the point source in parsec, in the Schwarzschild case. Each plot represents different values of the tuning parameters h and AbsTol: 10-18 (left), 10-16 (middle), and 10-14 (right). The different types of curves denote the different integrators: Legacy Generic Integrator (solid), Runge Kutta Cash Karp 54 (dash), and Runge Kutta Fehlberg 78 (dot).
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