Fig. 2.
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Background-subtracted 2−10 keV PN light curves (300 s bins) of the five brightest X-ray flares detected from Sgr A*. The August 31, 2019 flare (Obs.ID 0831801201) is shown together with bright flares observed in 2002 (0111350301), 2007 (0402430401), 2014 (0743630201), and on March 16, 2019 (0831800601). Source counts are extracted from a circular region of radius 10″, and the background from an annulus with inner and outer radii of 175″ and 200″. Time zero corresponds to the start of each observation (see Table A.1).
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