Free Access
Fig. 9

The z map with redshifts derived by the SDSS spectroscopic pipeline. Grey areas mark free space in the map that is not occupied with spectra. We labelled some regions that show high concentrations of particular objects types.
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.