The Limited Influence of Pressure Gradients on Late‐Type Stellar Line Asymmetries
The Limited Influence of Pressure Gradients on Late‐Type Stellar Line Asymmetries
Line asymmetries and shifts are powerful tools for studying velocity fields in the stellar photospheres. Other effects, however, could also generate asymmetries, blurring the information of the velocity patterns. We have studied the shifts and asymmetries induced in the profiles of spectral lines by pressure effects. The best theoretical and …