Image Details
Caption: Figure 13.
The distribution of ﹩\mathrm{log}{R}_{{\rm{HK}}}^{{\prime} }﹩ values derived in this work with those reported in previous studies. The black solid line indicates ﹩\mathrm{log}{R}_{{\rm{HK}}}^{{\prime} }﹩= ﹩\mathrm{log}{R}_{{\rm{HK}},{\rm{paper}}}^{{\prime} }﹩, and the dotted line is their fitting line.
© 2026. The Author(s). Published by the American Astronomical Society.