We report on the determination of chemical abundances of 38 solar analogues , including 11 objects previously identified as super metal-rich stars .
We have measured the equivalent widths for 34 lines of 7 different chemical elements ( Mg , Al , Si , Ca , Ti , Fe , and Ni ) in high-resolution ( \mathcal { R } \sim 80 000 ) spectroscopic images , obtained at the Observatorio Astrofísico Guillermo Haro ( Sonora , Mexico ) , with the Cananea High-resolution Spectrograph .
We derived chemical abundances using ATLAS12 model atmospheres and the Fortran code MOOG .
We confirmed the super metallicity status of 6 solar analogues .
Within our sample , BD+60 600 is the most metal-rich star ( [ Fe/H ] =+0.35 dex ) , while for HD 166991 we obtained the lowest iron abundance ( [ Fe/H ] = -0.53 dex ) .
We also computed the so-called [ Ref ] index for 25 of our solar analogues , and we found , that BD+60 600 ( [ Ref ] =+0.42 ) and BD+28 3198 ( [ Ref ] =+0.34 ) are good targets for exoplanet search .