Elemental Abundances in Six stars in Omega Centauri

Details Elemental Abundances in Six stars in Omega Centauri Elemental Abundances in Six stars in Omega Centauri

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.5116b&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #51.16; Bulletin of the American Astronomical Society, Vol. 24, p.1208

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We have obtained abundances for the elements C, N, O, Na, Mg, Al, Si, K, and Ti in six stars in omega Cen from high-resolution echelle CCD spectra in the blue and near infrared. Our sample spans a wide range in metallicity, -2.2<=lbrack {Fe/H}rbrack <=-1.3. In these stars lbrack alpha /Ferbrack shows a narrow dispersion about +0.5, very near the field halo stars; lbrackC +N+O/Ferbrack also seems to be constant. By contrast, the odd-Z metals Na and Al show excesses in lbrackNa ,Al/Ferbrack similar to other globular clusters.

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