Power-law spectral parameters. Top panel: intrinsic neutral hydrogen column density distribution, evaluated at z = 0 and in units of cm⁻², obtained using the power-Law model for extragalactic FXT candidates from this work (orange histogram) and Paper I (blue histogram). The arrows indicate that the z  =  0 intrinsic hydrogen column densities are lower bounds. Bottom panel: photon index distribution, obtained using a power-law model, for FXT candidates from this work (orange histogram) and Paper I (blue histogram). Note that the uncertainties on these parameter values for individual sources can be considerable (see Table 7).