Stars and Planetary Nebulae in the Galactic Bulge

Details Stars and Planetary Nebulae in the Galactic Bulge Stars and Planetary Nebulae in the Galactic Bulge

2000-08-29

arxiv.org/abs/astro-ph/0008466v1

Astronomy and Astrophysics

Astrophysics

to be published in the proceedings of the conference "Galaxy Disks and Disk Galaxies", Funes J.G. and Corsini E.M. eds., ASP C

Scientific paper

We compare the populations of Red Giant stars and Planetary Nebulae in the Galactic Bulge, in the light of recent determinations of their abundances patterns. We find both populations to be compatible. From the planetary nebulae, we find evidences that the Bulge did not form stars recently. The whole abundances pattern remains however puzzling, some elements favoring a quick evolution of the Galactic Bulge (Mg and Ti), and others a much slower one (He, O, Si, S, Ar and Ca).

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