Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...252..625b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 252, no. 2, Dec. 1991, p. 625-638. Research supported by CNRS.
Astronomy and Astrophysics
Astrophysics
101
Helium, Line Spectra, Resonant Frequencies, Spectral Line Width, Stellar Spectrophotometry, T Tauri Stars, Lithium, Photosphere, Pre-Main Sequence Stars, Stellar Composition
Scientific paper
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.
Basri Gibor
Bertout Claude
Martin Eduardo L.
No associations
LandOfFree
The lithium resonance line in T Tauri stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The lithium resonance line in T Tauri stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The lithium resonance line in T Tauri stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1536102