Chemistry of the Galactic Bulge: New Results

Details Chemistry of the Galactic Bulge: New Results Chemistry of the Galactic Bulge: New Results

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009msngr.136...48z&link_type=abstract

The Messenger, vol. 136, p. 48-53

Physics

Scientific paper

VLT-FLAMES observations provide by far the largest sample of high dispersion spectra of Bulge red giants available. Five years of work on these 900 spectra have yielded the abundances of different elements in the Milky Way Bulge, and new results on its formation. The results so far include the Bulge metallicity distribution, the Bulge metallicity gradient, the metallicity dependence on kinematics, the history of enrichment with alpha-elements, as well as the lithium abundance. The evidence collected on Milky Way Bulge chemical enrichment supports a rapid early formation scenario, and the metallicity gradient argues against formation via secular bar evolution.

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