Chemical abundances in the Galactic Bulge: evidence for a fast enrichment

Details Chemical abundances in the Galactic Bulge: evidence for a fast enrichment Chemical abundances in the Galactic Bulge: evidence for a fast enrichment

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rmxac..26...88z&link_type=abstract

XI IAU Regional Latin American Meeting of Astronomy (Eds. L. Infante & M. Rubio) Revista Mexicana de Astronomía y Astrofísica (S

Astronomy and Astrophysics

Astronomy

1

Galaxy: Bulge, Stars: Abundances, Stars: Atmospheres

Scientific paper

We derived oxygen abundances for 42 K giants in four fields towards the Galactic bulge. We present here the results for Oxygen, as measured from the forbidden line at 6300 Å. Oxygen shows a well defined trend with [Fe/H]. With [O/Fe] being higher in bulge stars than in thick disk ones, the latter already more oxygen enhanced than thin disk stars (Bensby, Feltzing, & Lundström 2004). This result supports the scenario that the bulge formed faster and probably earlier than the thick disk.

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