68%, 90%, and 99% confidence contours (﹩\Delta \chi ^{2}=3.5﹩, 6.3, and 11.3, respectively) for the power‐law (left panel) and blackbody (right panel) fits to the ROSAT PSPC and ASCA GIS2 spectra of RX J0822−4300. The lines in the right panel correspond to constant values of radius R of emitting area at a given distance ﹩d=2d_{2}﹩ kpc.