Abundance trend with condensation temperature for stars with different Galactic birth places

Context. During the past decade, several studies reported a correlation between chemical abundances of stars and condensation temperature (also known as T c trend). However, the real astrophysical nature of this correlation is still debated. Aims. The main goal of this work is to explore the possible dependence of the T c trend on stellar Galactocentric distances, R mean . Methods. We used high-quality spectra of about 40 stars observed with the HARPS and UVES spectrographs to derive precise stellar parameters, chemical abundances, and stellar ages. A differential line-by-line analysis was applied to achieve the highest possible precision in the chemical abundances. Results. We confirm previous results that [X/Fe] abundance ratios depend on stellar age and that for a given age, some elements also show a dependence on R mean . When using the whole sample of stars, we observe a weak hint that the T c trend depends on R mean . The observed dependence is very complex and disappears when only stars with similar ages are considered. Conclusions. To conclude on the possible dependence of the T c trend on the formation place of stars, a larger sample of stars with very similar atmospheric parameters and stellar ages observed at different Galactocentric distances is needed.