1D non-LTE corrections for chemical abundance analyses of very metal-poor stars

Detailed chemical abundances of very metal-poor (VMP, [Fe/H] < -2) stars are important for better understanding the First Stars, early star formation and enrichment galaxies. Big on-going coming high-resolution spectroscopic surveys provide a wealth material that needs to be carefully analysed. For VMP stars, their elemental should derived based on non-local thermodynamic equilibrium (non-LTE = NLTE) line because low metal electron number density in atmosphere produce physical conditions favorable departures from LTE. The galactic archaeology research requires homogeneous determinations abundances. this purpose, we present grids 1D-NLTE abundance corrections Na I, Mg Ca II, Ti Fe Zn Sr Ba II lines, which used research. range atmospheric parameters represents various evolutionary stages covers effective temperatures 4000 6500~K, surface gravities log g 0.5 5.0, metallicities $-5.0 \le$ $\le -2.0$. data is publicly available, tools interpolating online.