Fig. 5.

Download original image
Orbit of 2-body model. Top: orbit of (Aa1+Aa2)+Ab components in the (u–v) plane (green), calculated using the two-body model and the simplex method. Observations are shown with blue symbols and uncertainty ellipses (orange). The residuals are plotted in red; the value of χ2 = 95. The astrometry used for the fit is from the WDS. The radial velocities of Aa1, from Table 5 were also used for the fit, extending the time span to 44 000 days. Bottom: detail of the observed arc. The most precise astrometric measurements from 2013 and 2019 constrain the orbital period P2.
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.