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Fig. 4


Pulse profile compilation of IGR J18245–2452, showing the X-ray profiles for XMM-Newton/Epic-pn (panels a)f)), INTEGRAL/ISGRI (panels g)i)), and Fermi/GBM (panel j)). The shift between the 20–60 keV ISGRI and GBM profiles is only 23 ± 109 μs indicating a consistent alignment. This consistency is obtained by an improvement of the spin frequency value.

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