A comparison of the standard <i>h</i>-index and the fractional and authorship-weighted indices for selected highly-cited astronomers and astrophysicists.

<p>Upper panel: the standard <i>h</i>-index (grey colour) and the authorship-weighted <i>h</i>_<i>W</i>-index (red colour). Lower panel: differences between the standard <i>h</i>-index and the authorship-weighted <i>h</i>_<i>W</i>-index (grey colour) and between the fractional <i>h</i>_<i>m</i>-index and the authorship-weighted <i>h</i>_<i>W</i> -index (red colour). Absolute values of the differences are shown. The lower panel indicates a good consistency between <i>h</i>_<i>m</i> and <i>h</i>_<i>W</i>.