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Fig. 1.
Swift/BAT light curve of GRO J1744–28. The outburst in 2014 had a peak luminosity of 2.1 × 1038 erg s−1, slightly above the Eddington limit (D’Aì et al. 2015). The outburst in 2017 is at much lower luminosity 3.2 × 1036 erg s−1 (3−50 keV). The gaps in the Swift/BAT light curve are due to visibility constraints.
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