Galactic evolution

Explosive-nucleosynthesis yields leave fingerprints in spectra, light curves, X-rays, and radioactivities/decay gamma-rays of individual events for the explosive outbursts as well as their remnants. Galactic chemical evolution is a global test for all contributing stellar yields, especially ejecta of SNe II and SNe Ia (e.g. Francois et al. 2004). In the following we want to confront expectations resulting from the yield predictions presented in Sections 2 and 3 with observational data (see Figure 37.5). Before doing so, we give a short discussion of the expected rates of these events and the possible direct/indirect metallicity dependences of their yields.

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