Free Access

Fig. 5

image

Mean luminosity of HMXBs above a threshold of 1038 erg s-1, as a function of the oxygen abundance. Black, filled squares are the data points, while the red dashed line is the best linear fit to them, . A low-significance anticorrelation between these variables is observed, which might suggest a brightening of HMXBs at low metallicities. As in previous figures, the dispersion around the fit is large (0.4 dex).

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.