Bibcode
Israelian, G.
Referencia bibliográfica
Light Elements in the Universe, Proceedings of the International Astronomical Union, IAU Symposium, Volume 268, p. 285-290
Advertised on:
4
2010
Número de citas
0
Número de citas referidas
0
Descripción
Our recent study of solar-type stars from the HARPS GTO sample provides
highly accurate information with regard to Lithium abundances in stars
with and without detected planets (Israelian et al. 2009). When the Li
abundances of planet bearing stars are compared with the
“single” stars, we find an excess of Li depletion in planet
hosts with effective temperatures in the range 5700-5850 K. We also
found that small amounts of Li have survived in the atmospheres of some
planet-host solar analogs. Enhanced Li depletion in planet host stars
puts constraints on mixing processes responsible for this phenomenon. We
show that neither age nor metallicity are responsible for this
observational fact.