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Fig. 2.

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Top panel: NuSTAR Background-subtracted light curve of the latest outburst of IGR J17511−3057 as observed combining data collected by NuSTAR FPMA and FPMB (ObsID. 91101304002) starting from February 19, 2025 (MJD 60725.6). A type-I X-ray burst is detected at around MJD 60725.98. Middle panel: Temporal evolution of the fractional amplitude of the sinusoidal component used to model the source pulse profiles. Bottom panel: Pulse phase residuals in units of phase cycles relative to the best-fitting solution.

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