
TY  - JOUR
A1  - Buchdahl, HA 
T1  - Remark on the Polytrope of Index 5
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1978
VL  - 31
IS  - 1
SP  - 115
EP  - 116
KW  - 
UR  - https://doi.org/10.1071/PH780115 
N2  - 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. 
ER  -

