Evolution of the Milky Way Disk

Details Evolution of the Milky Way Disk Evolution of the Milky Way Disk

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006msu..conf..121n&link_type=abstract

The Many Scales in the Universe: JENAM 2004 Astrophysics Reviews, Invited talks to the XIII JENAM (Joint European and National A

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Solar neighbourhood is where the physical basis for models of the evolution of spiral galaxy disks can be tested most stringently. A new survey has provided full space motions, metallicities, ages, and duplicity information for over 14,000 nearby F and G dwarfs. The sample is magnitude-limited, volume complete to 40 pc, and without significant bias as regards age, metallicity, and kinematics, and thus complements a variety of detailed spectroscopic studies of selected subsamples of stars. The results show that the local hydrodynamics of star formation and chemical enrichment are far more prominent in the disk than accounted for by traditional chemical evolution models.

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