Gemini-Phoenix infrared high-resolution abundance analysis of five giants in the bulge globular cluster NGC 6553

2); (2)SPACE-UNMSM; (3)UFRGS; (4)ESO; (5)U.Padova; (6) O.Paris-Meudon); A. Renzini (4); B. Barbuy (1); E. Bica (3); J. Melendez (1

arxiv: astro-ph/0309552 · v1 · submitted 2003-09-20 · 🌌 astro-ph

Gemini-Phoenix infrared high-resolution abundance analysis of five giants in the bulge globular cluster NGC 6553

J. Melendez (1 , 2) , B. Barbuy (1) , E. Bica (3) , M. Zoccali (4) , S. Ortolani (5) , A. Renzini (4) , V. Hill (6) ((1)IAG-USP

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(2)SPACE-UNMSM (3)UFRGS (4)ESO (5)U.Padova (6) O.Paris-Meudon)

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keywords analysisabundancebulgeclustergiantsglobularinfraredphotometry

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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.

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Gemini-Phoenix infrared high-resolution abundance analysis of five giants in the bulge globular cluster NGC 6553

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