Example of how the X-ray flux and DOP spectra can be used together to estimate the properties of the accelerated electron distribution. Applying the warm target function (f_thick_warm in OSPEX) to the X-ray flux helps to constrain the coronal plasma properties and the following acceleration parameters: low energy cutoff E_c, the spectral index δ and the rate of acceleration Ṅ. Ignoring any other transport mechanisms, and once constrained, the resulting X-ray DOP spectra should only be dependent upon the high energy cutoff E_H and acceleration anisotropy Δμ, and turbulent scattering (using λ_s,  0), if present. Top panels: (left) the “flux data” (black) and the resulting f_vth+f_thick_warm fits to the X-ray flux spectrum (red and green respectively, this also contains an albedo component not shown), and (right) the “DOP data” (black) and four simulation runs using the constrained properties from the X-ray flux spectra and the values of E_H, Δμ and λ_s,  0 shown. Bottom panels: residuals and resulting reduced χ² for each fit. Both the X-ray flux and DOP are fitted between 3 and 90 keV (grey dash-dot line).