Free Access
Fig. 7.
QSO misclassification as a function of redshift. Top: using optical KiDS and near-IR VIKING features. Bottom: using only optical KiDS features. Left: spectroscopic QSOs and redshifts – a test for completeness. Right: QSO candidates and redshifts – a test for purity.
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.