Lithium abundances for 81 F dwarfs
Open Access
- 15 December 1991
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 253 (4) , 610-618
- https://doi.org/10.1093/mnras/253.4.610
Abstract
Lithium abundances are presented for 81 main-sequence stars with effective temperatures of about 5800–6700 K. A novel result of the survey is that, in old disc ([Fe/H] ≲ – 0.3) dwarfs too low in mass to belong to the Li-gap, Li is generally not depleted beyond the moderate level attributed to the convection zone of the pre-main- and main-sequence phase but, when depletion occurs, it is very effective. Li-poor old disc stars at luminosities too low to be identified with the Li-gap exist, but are rare.Keywords
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