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
22 - Dust, metals and diffuse interstellar bands in damped Lyman-alpha systems
Published online by Cambridge University Press: 02 December 2009
By
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
Summary
Although damped Lyman-alpha (DLA) systems are usually considered metal-poor, it has been suggested that this could be due to observational bias against metal-enriched absorbers. I review recent surveys to quantify the particular issue of dust obscuration bias and demonstrate that there is currently no compelling observational evidence to support the hypothesis of a widespread effect due to extinction. On the other hand, a small subset of DLAs may be metal-rich and I review some recent observations of these metal-rich absorbers and the detection of diffuse interstellar bands in one DLA at z ∼ 0.5.
- Type
- Chapter
- Information
- The Metal-Rich Universe , pp. 205 - 211Publisher: Cambridge University PressPrint publication year: 2008