EDP Sciences
Open Access

Fig. 1.

image

Top panel: distribution of X-ray point sources in galaxy clusters as a function of radius in units of . Bottom panel: total surface density of X-ray point sources in galaxy clusters divided by the optical galaxy profile. In both panels, the expected number of sources in the field has been subtracted statistically from each annulus. Error bars indicate the 1σ confidence limits for small numbers of events in astrophysical data. A significant excess is found in the cluster outskirts between 2 and 2.5 at the 99.9% confidence level.

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.