Background corrected Swift/XRT average outburst spectra. For AX J1745.6–2901, CXOGC J174535.5–290124 and GRS 1741–2853, spectra of the different outbursts captured during the 2006–2009 Swift/XRT monitoring are plotted together. The plot of XMM J174457–2850.3 shows the average outburst spectrum of the source in 2008, as well as the spectrum of the low-level activity observed in the months following this outburst.