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Lithium in field Am and normal A-F-type stars | | P. North
; F. Betrix
; C. Besson
; | | Date: |
30 Nov 2005 | | Abstract: | Preliminary abundances of lithium and a few other elements have been obtained for 31 field Am stars with good Hipparcos parallaxes, as well as for 36 normal A and F stars. Radial and projected rotational velocities were determined as well. We examine the Li abundance as a function of the stellar parameters: for normal stars, it is clearly bimodal for Teff < 7500 K, while Am-Fm stars are all somewhat Li-deficient in this range. The most Li-deficient stars - either Am or normal - tend to be at least slightly evolved, but the reverse is not true. | | Source: | arXiv, astro-ph/0511836 | | Services: | Forum | Review | PDF | Favorites | |
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