Co-author graph from <a class="external text" href="https://tools.wmflabs.org/scholia/topic/Q589">Scholia profile for "black hole"</a> as of 2019-10-01.
<a href="//commons.wikimedia.org/wiki/User:Daniel_Mietchen" title="User:Daniel Mietchen">Daniel Mietchen</a>
<span class="int-own-work" lang="en">Own work</span>