Lithium behaviour in debris disk systems.

CHAVERO, C.; DE LA REZA, R.; GHEZZI, L.; LLORENTE DE ANDRÉS, F.; PINZÓN, G.; PEREIRA, C.B.

Córdoba

Taller; VII Taller de Ciencias Planetarias; 2014

Observatorio Astronómico de Córdoba

We study the effects of the formation of planets and planetary systems on the atmospheric Li abundance of debris disk stars and the conection with the stellar rotation. The observed stellar rotation - Li abundance relation received in the past literature only qualitative and incomplete explanations. It is only with the recent work of Eggenberger et al. (2012) that quantitative and a much more complete approach on this subject has appeared. This model relates not only rotation to the Li depletion, but also the lifetime of a disk during the PMS stage of solar type stars. In this work we exam the extension of the validity of this model by measuring the Li abundances for a collection of solar type stars of different ages with and without disks.