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

Resultado de la investigación: Article

Resumen

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.

Idioma originalEnglish
Páginas (desde-hasta)327-328
Número de páginas2
PublicaciónProceedings of the International Astronomical Union
Volumen1
N.ºS228
DOI
EstadoPublished - 2005

Huella dactilar

globular clusters
European Southern Observatory
telescopes
high resolution
metal
metals
analysis
parameter

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Citar esto

Alves-Brito, A. ; Barbuy, B. ; Zoccali, M. ; Minniti, D. ; Ortolani, S. ; Hill, V. ; Renzini, A. ; Pasquini, L. ; Bica, E. / Detailed abundance analysis of the bulge globular cluster NGC 6553. En: Proceedings of the International Astronomical Union. 2005 ; Vol. 1, N.º S228. pp. 327-328.
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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 {\'e}chelle 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.",
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Alves-Brito, A, Barbuy, B, Zoccali, M, Minniti, D, Ortolani, S, Hill, V, Renzini, A, Pasquini, L & Bica, E 2005, 'Detailed abundance analysis of the bulge globular cluster NGC 6553', Proceedings of the International Astronomical Union, vol. 1, n.º S228, pp. 327-328. https://doi.org/10.1017/S1743921305005909

Detailed abundance analysis of the bulge globular cluster NGC 6553. / Alves-Brito, A.; Barbuy, B.; Zoccali, M.; Minniti, D.; Ortolani, S.; Hill, V.; Renzini, A.; Pasquini, L.; Bica, E.

En: Proceedings of the International Astronomical Union, Vol. 1, N.º S228, 2005, p. 327-328.

Resultado de la investigación: Article

TY - JOUR

T1 - Detailed abundance analysis of the bulge globular cluster NGC 6553

AU - Alves-Brito, A.

AU - Barbuy, B.

AU - Zoccali, M.

AU - Minniti, D.

AU - Ortolani, S.

AU - Hill, V.

AU - Renzini, A.

AU - Pasquini, L.

AU - Bica, E.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

KW - Globular clusters:general

KW - Globular clusters:individual:NGC6553

KW - Stars:abundances

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