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Lithium in the Open Cluster NGC 6475

Published online by Cambridge University Press:  25 May 2016

S. Randich ,
R. Pallavicini  and
J.-C. Mermilliod
S. Randich
Affiliation:
Osservatorio Astrofisico di Arcetri, Firenze, Italy
R. Pallavicini
Affiliation:
Osservatorio Astronomico di Palermo, Italy
J.-C. Mermilliod
Affiliation:
University of Lausanne, Switzerland

Abstract

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We present the results of a lithium study of the 220 Myr old cluster NGC 6475. Our data are merged with those from previous Li surveys of this cluster in order to construct a more statistically significant sample. The Li vs. effective temperature distribution of the merged sample is compared with the one of the co-eval, but more metal poor cluster M 34 and with the ones of the younger Pleiades and older Hyades. The results are discussed in the framework of non-standard Li depletion on the main-sequence between the age of the Pleiades (˜ 120 Myr) and that of the Hyades (˜ 600 Myr).

Type
4. Lithium Abundances
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 287 - 292
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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