Open Access

Fig. 4.

image

Download original image

Examples of CHITAH false positives, the variable objects identified as lensed quasars by both the variability-based method and CHITAH, but rejected by the visual inspection. The five columns are in the same format as in Fig. 1. For details about these CHITAH false positives, see Sect. 4.2.

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.