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
- 16 Stellar abundances of early-type galaxies
- 17 Measuring chemical abundances in extragalactic metal-rich H ii regions
- 18 On the maximum oxygen abundance in metal-rich spiral galaxies
- 19 Starbursts and their contribution to metal enrichment
- 20 High metallicities at high redshifts
- 21 Evolution of dust and elemental abundances in quasar DLAs and GRB afterglows as a function of cosmic time
- 22 Dust, metals and diffuse interstellar bands in damped Lyman-alpha systems
- 23 Tracing metallicities in the Universe with the James Webb Space Telescope
- 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
18 - On the maximum oxygen abundance in metal-rich spiral galaxies
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
- 16 Stellar abundances of early-type galaxies
- 17 Measuring chemical abundances in extragalactic metal-rich H ii regions
- 18 On the maximum oxygen abundance in metal-rich spiral galaxies
- 19 Starbursts and their contribution to metal enrichment
- 20 High metallicities at high redshifts
- 21 Evolution of dust and elemental abundances in quasar DLAs and GRB afterglows as a function of cosmic time
- 22 Dust, metals and diffuse interstellar bands in damped Lyman-alpha systems
- 23 Tracing metallicities in the Universe with the James Webb Space Telescope
- 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
Summary
We discuss recent results based on our ongoing work on the study of the chemical abundances in the central part of spiral galaxies. A robust technique has been used to extrapolate the derived radial abundance gradients of oxygen to the center of the respective galaxies, taking into account the recent ff relation of Pilyugin (2005) and the new model-independent correction for electron-temperature structure within the H II regions as well as the contribution of a possible oxygen depletion by dust grains. In this way, a typical value for the expected maximum O/H abundance in spiral galaxies is derived. Implications of this result for the metallicity–luminosity relation and for the chemical abundances derived for high-redshift-galaxy samples are briefly discussed.
- Type
- Chapter
- Information
- The Metal-Rich Universe , pp. 168 - 172Publisher: Cambridge University PressPrint publication year: 2008