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
48 - Formation and evolution of the Galactic bulge: constraints from stellar abundances
Published online by Cambridge University Press: 02 December 2009
- 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
We present results for the chemical evolution of the Galactic bulge in the context of an inside-out formation model of the Galaxy. A supernovadriven wind was also included in analogy with elliptical galaxies. New observations of chemical-abundance ratios and the metallicity distribution have been employed in order to check the model results. We confirm previous findings that the bulge formed on a very short timescale with quite a high star-formation efficiency and an initial mass function more skewed towards high masses than the one suitable for the Solar neighbourhood. A certain amount of primary nitrogen from massive stars might be required in order to reproduce the nitrogen data at low and intermediate metallicities.
- Type
- Chapter
- Information
- The Metal-Rich Universe , pp. 460 - 464Publisher: Cambridge University PressPrint publication year: 2008