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Search for Lithium-Rich Stars Among G-K Giants with IR-excess

Published online by Cambridge University Press:  25 May 2016

G. Jasniewicz ,
M. Parthasarathy ,
P. de Laverny ,
F. Thévenin ,
N. Mauron  and
M. Chadid
G. Jasniewicz
Affiliation:
GRAAL, UPRESA 5024, Université de Montpellier II, CC 72, 34095 Montpellier Cedex 05, France
M. Parthasarathy
Affiliation:
Indian Institute of Astrophysics, Koramangala, Bangalore 560 034, India
P. de Laverny
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Fresnel, UMR 6528, B.P. 4229, 06304 Nice Cedex 4, France
F. Thévenin
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Cassini, UMR 6529, B.P. 4229, 06304 Nice Cedex 4, France
N. Mauron
Affiliation:
GRAAL, UPRESA 5024, Université de Montpellier II, CC 72, 34095 Montpellier Cedex 05, France
M. Chadid
Affiliation:
ESO, Casilla 19001, Santiago 19, Chile

Abstract

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We report here new results about a search for Li-rich stars among 52 G-K giant stars which are known to have near IR excess. Eleven giants have been found to have log ∊(Li) ≥ 1.0. Five are new Li-rich stars. We suspect circumstellar shells around one of them, HD 219025. There is no clear correlation between Li-richness and rotation, or with binarity.

Type
4. Lithium Abundances
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 325 - 330
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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