Maps of the resulting SED parameters for NGC 2146 for 6″ pixels (≃525 pc). Shown (from left to right) are cold dust temperature T_c (K), cold dust mass surface density ${\mathrm{\Sigma }}_{M_{\mathrm{c}}}({\mathrm{M}}_{\odot }{\mathrm{kpc}}^{-2})$, warm dust temperature T_c (K), warm dust mass surface density ${\mathrm{\Sigma }}_{M_{\mathrm{c}}}({\mathrm{M}}_{\odot }{\mathrm{kpc}}^{-2})$, and thermal free-free fraction at 21 cm f_ff(21 cm). The SED analysis only uses pixels with intensities > 3σ_rms at all wavelengths. The beam width of 18″ is demonstrated in the lower left corner of the first panel. Also shown is the percentage of relative error of each parameter (bottom row).