The Galactic Bulge: The Stellar and Planetary Nebulae Populations
Astrophysics
2007-05-23 v1
Abstract
We compare abundances patterns in the Bulge for elements observed in stars and in planetary nebulae. Some alpha elements, like Mg and Ti, are overabundant respect to Fe, and others are not, like He, O, Si, S, Ar, Ca. The first ones favor a quick evolution of the Galactic Bulge, and the seconds a much slower one.
Cite
@article{arxiv.astro-ph/0101215,
title = {The Galactic Bulge: The Stellar and Planetary Nebulae Populations},
author = {F. Cuisinier and J. Koppen and A. Acker and W. J. Maciel},
journal= {arXiv preprint arXiv:astro-ph/0101215},
year = {2007}
}
Comments
To be published in Rev.Mex. A&A, Conf. Series. Proceedings of the conference ``Ionized Gaseous Nebulae'', held in Mexico City, Nov. 21-24, 2000