Fig. A.1.
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Time analysis of the IXPE data. (a) IXPE light curve in the 2–8 keV band during observation 8 of Swift J1727.8−1613 with a time bin of 1 ks. (b) Evolution of the IXPE hardness ratio between the 4–8 and 2–4 keV bands. (c) and (d): 2–8 keV PD and PA from IXPE data, respectively, determined using Model (1) in XSPEC in the corresponding restricted time ranges.
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