Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Abundances in the Galaxy: field stars
- Part II Abundances in the Galaxy: Galactic stars in clusters, bulges and the centre
- Part III Observations – abundances in extragalactic contexts
- Part IV Stellar populations and mass functions
- Part V Physical processes at high metallicity
- Part VI Formation and evolution of metal-rich stars and stellar yields
- Part VII Chemical and photometric evolution beyond Solar metallicity
- 43 Models of the Solar vicinity: the metal-rich stage
- 44 Chemical-evolution models of ellipticals and bulges
- 45 Chemical evolution of the Galactic bulge
- 46 How do galaxies become metal-rich? An examination of the yield problem
- 47 Abundance patterns: thick and thin disks
- 48 Formation and evolution of the Galactic bulge: constraints from stellar abundances
45 - Chemical evolution of the Galactic bulge
Published online by Cambridge University Press: 02 December 2009
Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Abundances in the Galaxy: field stars
- Part II Abundances in the Galaxy: Galactic stars in clusters, bulges and the centre
- Part III Observations – abundances in extragalactic contexts
- Part IV Stellar populations and mass functions
- Part V Physical processes at high metallicity
- Part VI Formation and evolution of metal-rich stars and stellar yields
- Part VII Chemical and photometric evolution beyond Solar metallicity
- 43 Models of the Solar vicinity: the metal-rich stage
- 44 Chemical-evolution models of ellipticals and bulges
- 45 Chemical evolution of the Galactic bulge
- 46 How do galaxies become metal-rich? An examination of the yield problem
- 47 Abundance patterns: thick and thin disks
- 48 Formation and evolution of the Galactic bulge: constraints from stellar abundances
Summary
The chemical evolution of the Galactic bulge is calculated by adopting a single-zone framework, with accretion of primordial gas on a free-fall timescale, assuming (i) a correspondingly 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 manifested in the predicted abundance-ratio patterns in the resulting present-day Galactic-bulge stellar populations.
- Type
- Chapter
- Information
- The Metal-Rich Universe , pp. 441 - 446Publisher: Cambridge University PressPrint publication year: 2008