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Photometric and spectroscopic analysis of the stellar association AB Doradus

Published online by Cambridge University Press:  09 March 2010

Orlando J. Katime-Santrich ,
Bruno V. Castilho ,
Carlos A. O. Torres  and
Germano R. Quast
Orlando J. Katime-Santrich
Affiliation:
Universidade Federal de Itajubá UNIFEI, Itajubá, Minas gerais, Brazil email: osantrich@lna.br Laboratorio Nacional de Astrofísica LNA, Itajubá, Minas gerais, Brazil
Bruno V. Castilho
Affiliation:
Laboratorio Nacional de Astrofísica LNA, Itajubá, Minas gerais, Brazil
Carlos A. O. Torres
Affiliation:
Laboratorio Nacional de Astrofísica LNA, Itajubá, Minas gerais, Brazil
Germano R. Quast
Affiliation:
Laboratorio Nacional de Astrofísica LNA, Itajubá, Minas gerais, Brazil
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Abstract

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We present the stellar parameters and lithium abundance for 23 stars of the young stellar association AB Doradus, determined by photometry and spectroscopy. The photometric data was obtained at OPD/LNA and/or from the literature and the spectroscopic data was obtained at La silla/ESO and at OPD/LNA. The parameters were determined using photometric calibrations, line ratios, curves of growth and spectral synthesis. Our results confirm that the selected stars are probably association members, showing an uniform metallicity and lithium depletion consistent with 50 Myears

Keywords

Astrochemistrystars: abundancespre-main sequenceatmospheres
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S265: Chemical Abundances in the Universe: Connecting First Stars to Planets , August 2009 , pp. 370 - 371
Copyright
Copyright © International Astronomical Union 2010

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