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Fig. 4


Unfolded spectrum of the normal and “off states”. For the normal spectrum XIS0 and HXD PIN data were used. For the “off” spectrum data from all XIS units were combined to obtain a larger statistics. Best-fit residuals are also shown from top to bottom for: the normal state without CRSF; with the inclusion of a CRSF at 55 keV; with the inclusion of two CRSFs, and, eventually, for the “off-state” spectrum.

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