Free Access

Fig. A.1

thumbnail

The spectrum of the background in the Chandra 4 Ms exposure of the CDFS. The spectrum has been extracted from a circle of 8 arcmin radius, after excluding 5 arcsec radius regions around all detected sources (10–20 arcsec for bright sources and extended sources).

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.