Free Access

Fig. A.1


Cyclotron line centroid energy Ecyc as a function of the logarithm of flux in the 1380 keV range. The black dots are the results of Klochkov et al. (2012), obtained with OSA 9 and corrected for the ISGRI energy gain drift. The red triangles are the results of this work, obtained with OSA 10 and then gain-corrected. The dashed and dotted lines are the results of linear fits to the Ecyc − log 10 (Flux) data for the two sets resulting from OSA 9 and OSA 10 data reduction, respectively. The error bars indicate 1σ-uncertainties (the statistical flux uncertainties are smaller than the symbol size). The top x-axis shows the corresponding isotropic source luminosity assuming a distance of 2.4 kpc.

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.