Estimation of velocity field in chromosphere of active red giant PZ Mon
An analysis of the emission profiles of strong spectral lines was used to estimate the velocity field at different depths of the chromosphere of the active giant PZ Mon. We analyzed the H α , CaII lines: doublet 3933/3964 Å, triplet 8498/8542/8662 Å, and doublet NaI 5890/5896 Å, the depths of formation of which vary considerably. The values of the speeds are from 7 to 61 km·s -1 .