Chemical Evolution of the Galactic Bulge

Details Chemical Evolution of the Galactic Bulge Chemical Evolution of the Galactic Bulge

2006-11-29

arxiv.org/abs/astro-ph/0611879v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures. To appear in "The Metal-Rich Universe", (La Palma, June 2006), eds. G. Israelian and G. Meynet (Cambridge

Scientific paper

Adopting a single-zone framework, with accretion of primordial gas on a free-fall timescale, the chemical evolution of the Galactic bulge is calculated, assuming (i) a corresponding rapid timescale for star formation, and (ii) an initial mass function biased towards massive stars. We emphasise here the uncertainties associated with the underlying physics (specifically, stellar nucleosynthesis) and how those uncertainties are manifest in the predicted abundance ratio patterns in the resulting present-day Galactic bulge stellar populations.

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