
%0 Journal Article
%A Buchdahl, HA 
%T Remark on the Polytrope of Index 5
%J Australian Journal of Physics
%D 1978/02/01
%V 31
%N 1
%P 115-116
%K 
%R https://doi.org/10.1071/PH780115
%U https://www.publish.csiro.au/paper/PH780115 
%X Contrary to statements in the current literature the gravitational potential energy of the poly trope of index 5 is finite; With e. denoting the least positive zero of the Emden function of index n, the value of the limit as n -4 5 of (5 - n)e. is determined and made the basis of a simple rational approximation to e. qua function of n. 
