Free Access

Fig. 1


Schematical view of the parabolic orbit approximation. The blue spiral is the main galaxy, S is the satellite with projected distance d and true anomaly ν. The distance p between the centre of the spiral galaxy and the directrix Π of the parabola is twice the outer radius of the main galaxy R.

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.