On the Abundance Gradients in the Galactic Disc

  • L. Portinari
Part of the Astrophysics and Space Science Library book series (ASSL, volume 255)

Abstract

Negative radial gradients of metallicity in spiral discs have long been established. For the disc of the Milky Way, recent results on bright blue stars (Smartt&R,olleston 1997, Gummersbach et al. 1998) show an oxygen gradient around —0.07 dex/kpc, in good agreement with the one derived from nebular studies (Shaver et al. 1983, Fich & Silkey 1991, Vilchez & Esteban 1996, Simpson et al. 1995, Afllerbach et al. 1997, Rudolph et al. 1997, Ma-ciel & Köppen 1994). The apparent discrepancy of the past years is thus overcome; see also Smartt (2000, this book).

Keywords

Settling Haas 

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Copyright information

© Springer Science+Business Media Dordrecht 2000

Authors and Affiliations

  • L. Portinari
    • 1
  1. 1.Dipartimento di AstronomiaUniversità di Padova Vicolo dell’Osservatorio 5Padova (PD)Italy

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