The evolution of Galactic planetary nebula progenitors through the comparison of their nebular abundances with AGB yields
We study the chemical abundances of a wide sample of 142 Galactic planetary nebulae (PNe) with good-quality observations, for which the abundances have been derived more or less homogeneously, thus allowing a reasonable comparison with stellar models. The goal is the determination of mass, chemical composition and formation epoch of their
García-Hernández, D. A. et al.
Fecha de publicación:
11
2017