NICER observations of type-I X-ray bursts from the ultra-compact X-ray binary M15 X-2

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Fig. 3.

Overlapped light curves of the seven M15 X-2 bursts in the 0.3–10 keV band with 1 s binning. The light curves are aligned by the burst onset (t₀). Each color and symbol represents a different burst. For burst 5, only the tail was observed, so it was manually positioned to match the morphology of the other bursts.

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