The elemental composition of the Sun III. The heavy elements Cu to Th

Understand

We re-evaluate the abundances of the elements in the Sun from copper ($Z=29$) to thorium ($Z=90$).

• Our results are mostly based on neutral and singly-ionised lines in the solar spectrum.
• We use the latest 3D hydrodynamic solar model atmosphere, and in a few cases also correct for departures from local thermodynamic equilibrium (LTE) using non-LTE (NLTE) calculations performed in 1D.
• In order to minimise statistical and systematic uncertainties, we make stringent line selections, employ the highest-quality observational data and carefully assess oscillator strengths, hyperfine constants and isotopic separations available in the literature, for every line included in our analysis.