Bibcode
Rebolo, R.; Magazzù, A.; Martín, E. L.
Referencia bibliográfica
The Bottom of the Main Sequence - and Beyond, Proceedings of the ESO Workshop Held in Garching, Germany, 10-12 August 1994, edited by Christopher G. Tinney. Springer-Verlag Berlin Heidelberg New York. Also ESO Astrophysics Symposia, 1995., p.159
Advertised on:
0
1995
Número de citas
5
Número de citas referidas
2
Descripción
This paper discusses the ability of Li to confirm the substellar nature
of a brown dwarf candidate. Theoretical computations using different
interior models agree that brown dwarfs with masses below $sim$ 0.065
M$_{odot}$ preserve a significant fraction of their initial Li content
while for higher masses total Li depletion occurs in very short
timescales. Refined spectral synthesis using brown dwarf model
atmospheres shows that the Li I resonance line at 670.8 nm should
produce a conspicuous feature at effective temperatures higher than 2000
K, suitable for spectroscopic detection in present brown dwarf
candidates. We summarize the results of our search for Li in many of the
best candidates known so far.