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CNO abundances in giants of the peculiar globular cluster NGC 1851

Published online by Cambridge University Press:  09 May 2016

G. Tautvaišienė ,
A. Drazdauskas ,
C. Lardo ,
S. L. Martell ,
E. Pancino ,
E. Stonkutė  and
Gaia-ESO Consortium
G. Tautvaišienė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Gostauto 12, 01108, Vilnius, Lithuania, email: [email protected]
A. Drazdauskas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Gostauto 12, 01108, Vilnius, Lithuania, email: [email protected]
C. Lardo
Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, 146 Brownlow Hill, Liverpool L3 5RF, United Kingdom
S. L. Martell
Affiliation:
School of Physics, University of New South Wales, NSW 2052, Sydney, Australia
E. Pancino
Affiliation:
INAF-Osservatorio Astronomico di Bologna, Via Ranzani 1, 40127, Bologna, Italy ASI Science Data Center, Via del Politecnico SNC, 00133, Roma, Italy
E. Stonkutė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Gostauto 12, 01108, Vilnius, Lithuania, email: [email protected]
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Abstract

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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.

Keywords

Stars: abundancesstars: evolutionglobular clusters: individual (NGC 1851)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 352 - 353
Copyright
Copyright © International Astronomical Union 2016 

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