CNO abundances in giants of the peculiar globular cluster NGC 1851

CNO abundances in giants of the peculiar globular cluster NGC 1851

We provide CNO and Fe abundance investigations for a sample of up to 45 NGC 1851 giants. High-resolution spectra were obtained with the VLT UVES spectrograph in the framework of the Gaia-ESO Survey. The stars in our sample can be separated into two groups with a difference of 0.1 dex in the mean met...

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Veröffentlicht in:Proceedings of the International Astronomical Union 2015-08, Vol.11 (S317), p.352-353
Hauptverfasser: Tautvaišienė, G., Drazdauskas, A., Lardo, C., Martell, S. L., Pancino, E., Stonkutė, E.
Format: Artikel
Sprache:eng
Schlagworte:
Abundance
Astronomical bodies
Astronomy
Contributed Papers
Giant stars
Globular clusters
High resolution
Metallicity
Spectra
Spectrographs
Spectrum analysis
Stars
Stars & galaxies
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Beschreibung
Zusammenfassung:We provide CNO and Fe abundance investigations for a sample of up to 45 NGC 1851 giants. High-resolution spectra were obtained with the VLT UVES spectrograph in the framework of the Gaia-ESO Survey. The stars in our sample can be separated into two groups with a difference of 0.1 dex in the mean metallicity, 0.3 dex in the mean C/N, and no significant difference in the mean values of C+N+O.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921315007048