Density ( normalized to average density ) versus radius ( normalized to external radius ) for a polytrope with index n=3. Plotted with gnuplot from numerically computed values of the corresponding Lane-Emden function.
{{Information |Description=Density ( normalized to average density ) versus radius ( normalized to external radius ) for a polytrope with index n=3. Plotted with gnuplot from numerically computed values of the corresponding Lane-Emden function. |Source=