Galactic gamma-ray line emission from radioactive isotopes

Measurements of the Galactic γ-ray sky in lines attributed to the radioactive decay of ${}^{\mathrm{7}}\mathrm{Be},$ ${}^{\mathrm{22}}\mathrm{Na},$ ${}^{\mathrm{26}}\mathrm{Al},$ ${}^{\mathrm{44}}\mathrm{Ti},$ ${}^{\mathrm{56}}\mathrm{Ni},$ and ${}^{\mathrm{60}}\mathrm{Fe}$ are collected, organized, and collated with models for the production sites/mechanisms, spatial distributions, and the chemical evolution of these isotopes.