Does the i-process operate at nearly solar metallicity?

Context. A sample of 895 s-process-rich candidates has been found among the 454 180 giant stars surveyed by LAMOST at low spectral resolution ( R ~ 1800). In a previous study, taking advantage higher 86 000) offered HERMES-Mercator spectrograph, we performed reanalysis 15 brightest this sample. Among these programme stars, which have close-to-solar metallicities, 11 showed mild to strong heavy-element overabundances. However, did not investigate nucleosynthetic process(es) origin overabundances in our former study. Aims. We derive abundances s- and r-process elements targets order whether some also show an i-process signature, as sometimes their lower-metallicity counterparts (namely, carbon-enhanced metal-poor (CEMP)-rs stars). Methods. Abundances are derived from high-resolution HERMES spectra for Pr, Nd, Sm, Eu using TURBOSPECTRUM radiative-transfer local thermodynamic equilibrium code with MARCS model atmospheres. Results. Using new classification scheme proposed recent find that two both sand well above level expected Galactic chemical evolution (GCE), analogous situation CEMP-rs lower metallicities. compare most enriched predictions STAREVOL stellar evolutionary compatible occurring asymptotic branch stars. Conclusions. Despite there being larger number heavy characterize enrichment pattern, limit between CEMP-s remains indistinct. Nevertheless, it is interesting note increasing extrinsic better reproduced pattern even