| Issue |
A&A
Volume 411, Number 3, December I 2003
|
|
|---|---|---|
| Page(s) | 417 - 426 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20031357 | |
| Published online | 17 November 2003 | |
Gemini-Phoenix infrared high-resolution abundance analysis of five giants in the bulge globular cluster NGC 6553 *
1
Universidade de São Paulo, Depto. de Astronomia, Rua do Matão 1226, Cid. Universitária, São Paulo 05508-900, Brazil e-mail: jorge@astro.iag.usp.br;barbuy@astro.iag.usp.br
2
Universidad Nacional Mayor de San Marcos, Seminario Permanente de Astronomía y Ciencias Espaciales, Facultad de Ciencias Físicas, Av. Venezuela s/n, Lima 1, Peru
3
Universidade Federal do Rio Grande do Sul, Dept. de Astronomia, CP 15051, Porto Alegre 91501-970, Brazil e-mail: bica@if.ufrgs.br
4
European Southern Observatory, Karl-Schwarzschild Strasse 2, 85748 Garching bei München, Germany e-mail: mzoccali@eso.org;arenzini@eso.org
5
Università di Padova, Dipartimento di Astronomia, Vicolo dell'Osservatorio 5, 35122 Padova, Italy e-mail: ortolani@pd.astro.it
6
Observatoire de Paris-Meudon, 92195 Meudon Cedex, France e-mail: vanessa.hill@obspm.fr
Corresponding author: B. Barbuy, barbuy@astro.iag.usp.br
Received:
7
May
2003
Accepted:
19
August
2003
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
![$\rm [Fe/H] = -0.20\pm 0.10$](/articles/aa/abs/2003/46/aa3953/aa3953_tex_eq1.png)
. An overabundance of oxygen of ![$\rm [O/Fe] = +0.20$](/articles/aa/abs/2003/46/aa3953/aa3953_tex_eq2.png)
is found from IR OH lines.
Key words: stars: abundances, atmospheres / Galaxy: globular clusters: individual: NGC 6553
© ESO, 2003
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