Chromospheric activity in K stars

We computed chromospheric models of six stars of spectral type K, in some cases in two different moments of activity. The stars were chosen with 0.82<B-V<0.90, including the widely studied star Epsilon Eridani. The stars in the sample have a wide variety of magnetic activity levels, which allows us to study the differences in structures induced by activity, and expand our previous work for G stars including the Sun as a star. The models were constructed to obtain the best possible match with the Ca II K and H$\beta$ observed profiles. We also computed the net radiative losses for each model to constrain physical processes to maintain the structure in the atmosphere predicted by the models. We find a strong correlation between these losses and ScaII, the index generally used as a proxy for activity, as we found for G stars.