Fig. 13

Download original image
Analytical (gray solid line) and numerical (blue dotted line, obtained with PyGRO) solutions for a radially infalling null geodesic in the Schwarzschild space-time when starting from an initial radial coordinate of r0= 50M. The two solutions perfectly agree. The dashed vertical line corresponds to the Schwarzschild radius where the coordinate time exhibits a divergence.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.