The influence of nova nucleosynthesis on the chemical evolution of the Galaxy

We adopt up-to-date yields of Li-7, C-13, N-15 from classical novae and use a well tested model for the chemical evolution of the Milky Way in order to predict the temporal evolution of these elemental species in the solar neighborhood. In spite of major uncertainties due to our lack of knowledge of metallicity effects on the final products of explosive nucleosynthesis in nova outbursts, we find a satisfactory agreement between theoretical predictions and observations for Li-7 and C-13. On the contrary, 15N turns out to be overproduced by about an order of magnitude.