Free Access

Fig. 2

image

Behaviour of the ratio of twin parallax and Hipparcos parallax as a function of σ using the Hipparcos reference sample. The inset shows a zoom of the region of the plot at low σ. The horizontal lines represent the range of 10% difference in parallaxes while the vertical line the value of σ = 0.015.

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.