Extended Data Fig. 3: eRO-QPE1 spectral fit results.
From: X-ray quasi-periodic eruptions from two previously quiescent galaxies
XMM-Newton EPIC-pn light-curve (top panel) and time-resolved spectroscopy fit results for spectra extracted in the 500-s time bins (bottom panels) of the two XMM-Newton observations of eRO-QPE1 (left, XMM1; right, XMM2) using an accretion disk model (diskbb): in particular, the evolution of the peak accretion disk temperature (Tin, k = kB) and the normalization (norm), which is proportional to the inner radius once distance and inclination are known. The time evolution of the 0.5–2.0-keV flux (F0.5–2.0keV) and luminosity (L0.5–2.0keV) is also shown in the bottom panel. The quiescence level is fitted by combining the first part of both XMM-Newton observations. It is shown with a dashed line because, due to low counts, the fit is more uncertain (see Extended Data Fig. 5a). Median fit values and fluxes of the high and low eROSITA states are reported with orange and red arrows pointing left (upper limits (UL) are denoted with diagonal arrows). 1σ uncertainties on the fit results are shown with shaded regions around the median.
