Local galactic evolution

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

The evolution of the Solar neighbourhood is followed using a unique,magnitude complete and kinematically unbiased sample of 14,000 F, G, andK dwarfs. Metallicity, age, space motion and galactic orbits have beendetermined for all stars. The result is a detailed view of the complexevolution of the local Milky Way, which must be matched by any model forthe chemical and dynamical evolution of the Galactic disk. E.g., suchmodels must explain the shape and large scatter in the age-metallityrelation as well as the overall metallicity distribution; the evolutionof stellar kinematics with age; the distribution of stars in velocityspace; and the contributions from the thick and thin disks to all theserelations.

Detaljer

Författare
  • Johan Holmberg
  • Birgitta Nordström
  • Bjarne Rosenkilde Jørgensen
  • Johannes Andersen
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Astronomi, astrofysik och kosmologi
Originalspråkengelska
Sidor (från-till)685-688
TidskriftAstrophysics and Space Science
Volym284
Utgåva nummer2
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa