Fig. 5. Synthetic and observed spectra for IN Virginis. The upper panel compares an unbroadened synthetic spectrum (thin line) with the observed IN Vir spectrum (thick line). It demonstrates the amount of blending evident at the late spectral type of IN Vir. The line identifications on the top include, in addition to the element and the rest wavelength, our new value for the transition probability. The lower panel repeats the observed spectrum (thick line) and shows the obtained fit (thin line) when appropriate rotation is included. The three strongest lines are the spectral lines used for Doppler-imaging (Ca I 6439 Å , Fe I 6430 Å and Fe I 6421 Å).