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Elemental Abundances of Three Giants in Terzan 7

Published online by Cambridge University Press:  03 August 2017

George Wallerstein ,
Guillermo Gonzalez  and
Doug Geisler
George Wallerstein
Affiliation:
University of Washington, Astronomy Department, Box 351580 Seattle, WA 98195, USA
Guillermo Gonzalez
Affiliation:
University of Washington, Astronomy Department, Box 351580 Seattle, WA 98195, USA
Doug Geisler
Affiliation:
Universidad de Concepción, Departmento de Física, Casillo 160-C Concepción, Chile

Abstract

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Using VLT UVES spectra of resolving power near 23,000 we have analyzed three stars in Terzan 7, a globular cluster associated with the Sagittarius Galaxy. We find [Fe/H] = −0.61±0.1, [O/Fe] = +0.25, [α/Fe] = +0.23 dex, and an enhancement of r/s elements as compared with the Sun and Arcturus.

Type
Part 1. The Star Clusters of Local Group Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 171 - 173
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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