Bibcode
Basri, G.; Martin, E. L.; Bertout, C.
Bibliographical reference
Astronomy and Astrophysics (ISSN 0004-6361), vol. 252, no. 2, Dec. 1991, p. 625-638. Research supported by CNRS.
Advertised on:
12
1991
Citations
119
Refereed citations
105
Description
High-resolution spectra provide evidence of the Li-I 6707 line in 28 of
the stars, and the significance of the results is discussed. The Li-I
equivalent widths are presented after correcting for continuum veiling
with actual measurements of the veiling itself. Surface spots are found
to have a complex effect on the width of the photospheric lines, and the
width of the line for V 410 Tau does not appear to change with spot
coverage. The results indicate that the model atmospheres and stellar
parameters for the T-Tauri stars lead to errors in calculating the Li
abundances. The stars have higher Li abundances than meteorites and the
local ISM if the T-Tauri stars are hotter than late K. Several effects
are discussed which are of an unusual nature including the Li depletion
among young low-mass Taurus-Auriga objects and the homogeneous nature of
Li depletion among stars with strong and weak emission lines.