The most metal-poor galaxies

@article{Kunth1999TheMM,
  title={The most metal-poor galaxies},
  author={Daniel Kunth and G{\"o}ran {\"O}stlin},
  journal={The Astronomy and Astrophysics Review},
  year={1999},
  volume={10},
  pages={1-79}
}
Summary. Metallicity is a key parameter that controls many aspects in the formation and evolution of stars and galaxies. In this review we focus on the metal deficient galaxies, in particular the most metal-poor ones, because they play a crucial rôle in the cosmic scenery. We first set the stage by discussing the difficult problem of defining a global metallicity and how this quantity can be measured for a given galaxy. The mechanisms that control the metallicity in a galaxy are reviewed in… 

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