Hardness-Intensity diagram derived from the entire archival RXTE PCA data set for V4641 Sgr. Intensity and Hardness are defined in the caption of Fig. A.1. Coloured markers indicate data that correspond with the H.E.S.S. observation epochs, as well as historically noteworthy episodes of flaring activity (e.g. Wijnands & van der Klis 2000).
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