Fig. 3
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Corbet diagram of the 38 HMXBs in the Liu et al. (2006) catalogue (top panel) and the 75 HMXBs in the current catalogue (bottom panel). BeHMXBs are shown as blue dots, sgHMXBs (SFXTs) are shown as green triangles (squares), HMGB are shown as pink squares, and the remaining HMXBs with a peculiar and/or unclear spectral type are shown as red crosses “Indef”).
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