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2003A&A...411..417M - Astronomy and Astrophysics, volume 411417-426 (2003/12-1)
Gemini-Phoenix infrared high-resolution abundance analysis of five giants in the bulge globular cluster NGC 6553.
MELENDEZ J., BARBUY B., BICA E., ZOCCALI M., ORTOLANI S., RENZINI A. and HILL V.
Abstract (from CDS):
A detailed abundance analysis of 5 giants of the metal-rich bulge globular cluster NGC 6553 was carried out using high resolution infrared spectra in the H band, obtained at the Gemini-South 8m telescope. JK photometry collected at ESO and VI photometry from the Hubble Space Telescope are used to derive effective temperatures. The present analysis provides a metallicity [Fe/H]=-0.20±0.10. An overabundance of oxygen of [O/Fe]=+0.20 is found from IR OH lines.
Abstract Copyright: ∼
Journal keyword(s): stars: abundances, atmospheres - Galaxy: globular clusters: individual: NGC 6553
Simbad objects: 8
