Detailed abundance analysis of the bulge globular cluster NGC 6553

A. Alves-Brito, B. Barbuy, M. Zoccali, D. Minniti, S. Ortolani, V. Hill, A. Renzini, L. Pasquini, E. Bica

Research output: Contribution to journalArticlepeer-review

Abstract

A detailed abundance analysis of four giants in the metal-rich bulge globular cluster NGC 6553 is carried out, based on optical high resolution échelle spectra obtained with UVES at the ESO VLT-UT2 Kueyen telescope. A mean radial heliocentric velocity of -1.86 km s-1 is found. Stellar parameters are derived from spectroscopic data based on Fe I and Fe II lines. Enhanced abundance ratios for the α-elements Mg and Si with respect to Ca and Ti are obtained. The odd-Z elements are typically solar. A solar value for the r-process element Eu ([Eu/Fe] = +0.05 ± 0.06) was also found.

Original languageEnglish
Pages (from-to)327-328
Number of pages2
JournalProceedings of the International Astronomical Union
Volume1
Issue numberS228
DOIs
Publication statusPublished - 2005

Keywords

  • Globular clusters:general
  • Globular clusters:individual:NGC6553
  • Stars:abundances

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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