DOPPLER IMAGING OF AB DORADUS USING THE LI-I-6708 LINE

We present maximum entropy reconstructions of the stellar surface of t he K0 dwarf AB Doradus using observations obtained in 1993 November. D oppler images are produced using the Li I 6708-Angstrom Line and compa red to images produced using Ca I and Fe I lines. An Li abundance of l og N(Li) = 2.9 +/- 0.3 is measured using local thermodynamic equilibri um (LTE) profile synthesis, By assessing how enhanced spot Li abundanc es affect fits between synthetic reconstructions and the observed data , we conclude that the presence of starspots is unlikely to lead to an overestimation of the photospheric Li abundance. Moreover, Li abundan ces in starspots do not appear to be enhanced with respect to the phot ospheric level. The equivalent width measurements for the Li I 6708-An gstrom line are strengthened by the presence of starspots. This effect is probably due to their lower effective temperatures. Because the sp ots were widely distributed in longitude at the time of observation, t he extent to which the Li I line equivalent width is modulated as the star rotates is diluted.