Astronomy & Astrophysics

Table 1: Stellar atmospheric parameters and Cu and Zn abundances. Some parameters are from 1) Castro et al. (1999); 2) Chen et al. (2000); 3) Fulbright (2000); 4) Spite & Spite (1982); 5) Gratton et al. (2000); 6) Mishenina et al. (2002); 7) Thévenin (1998); 8) Israelian et al. (2001); 9) Israelian & Rebolo (2001). Solar Cu and Zn abundances are from Anders & Grevesse (1989).
Table 2: Sensitivities of the copper and zinc abundances to variations in the atmospheric parameters of the stars HD 94028 ( $T_{\rm eff}$ = 6058 K, log g = 4.28, $V_{\rm t}$ = 1.0 km s^-1), HD 140283 ( $T_{\rm eff}$ = 5723 K, log g = 3.68, $V_{\rm t}$ = 1.0 km s^-1) and G170-47 ( $T_{\rm eff}$ = 5154 K, log g = 2.93, $V_{\rm t}$ = 1.25 km s^-1), and to the overshooting.