Spectral evolution relative to the local interstellar spectrum q_LIS of the γ-ray emissivities found for the HI and DNM phases of the Reticulum and North Hydrus clouds (top and middle panels). Spectral evolution of the isotropic and IC intensities found in the region relative to the input spectra (bottom panel), q_DNM/q_LIS is given in 10²⁶ cm⁻². The results are shown for the optically thin HI case. The error bars combine the statistical and systematic uncertainties.