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Fig. 2

image

Bolometric flux, temperature and blackbody normalization evolution during the hard-state PRE bursts. The black line shows the estimated bolometric flux (left-hand y-axis) in units of 10-7 erg cm-2 s-1. The blue ribbon shows the 1σ limits of the blackbody normalization (outer right-hand y-axis) in (km / 10 kpc)2. Similarly, the dashed orange line shows the color-corrected angular size (R/D10)2 using the same axis. The red ribbon show the 1σ errors for blackbody color temperature (inner right-hand y-axis) in keV. Highlighted gray area marks the region of the cooling tail used in the fitting procedures.

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