The results obtained in the detailed analysis developed in the present work confirm the hypothesis (Castilho 1995; de la Reza et al. 1996) that LRG are quite normal stars, except for their high Li abundance and large infrared excess. The similarities with normal giants, concerning mass, chemical composition, temperature and metallicity, combined with the far-infrared emission indicate that LRG do not form a unique class of objects. The low Be abundance found in two Li-rich giants strongly suggests that Li has been produced in the stars (Castilho et al. 1999). The LRG probably correspond to a rapid phase of stellar evolution, in which the star normally produces Li (Castilho 1995; de la Reza et al. 1996).
© European Southern Observatory (ESO) 2000
Online publication: January 29, 2001