Line synthesis of several chemical elements from carbon to Bismuth in the spectrum of HD 72660

The high resolution and high $S/N$ HARPS and STIS spectra of the A0Vm star HD72660 have been synthesised using model atmospheres and the line synthesis code Synspec49 in order to derive the abundances of several key chemical elements. In particular we have derived abundances of elements which have their strongest lines in the UV like Ru, Yb, Au, Pb and Bi. We find overabundances of heavy elements in particular strong overabundances of Pt, Pb and Bi which are probably the signature of radiative diffusion in this star.