Fig. 2.
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Hardness-intensity diagrams from MAXI/GSC (left panel) and Insight-HXMT/LE (right panel). The blue dotted line represents the rising phase before the outburst peak, while the black line shows the decay phase. The red dots represent the five data sets used in this paper. If there are no simultaneous MAXI data for some data sets, the MAXI data in approximate date are indicated.
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