Hydrogen H_γ line of κ And A (solid lines) fitted by atmospheric models (dotted lines). Residuals from the fit are shown in the upper part of the figures. Top: solution where the line wings and the core are well fitted, but where the fit degrades in the line breadth. Bottom: solution for which the line breadth is better fitted. These solutions were combined to derive the new estimate of the temperature and the surface gravity of the star.