
TY  - JOUR
A1  - Van Der Borght, R. 
T1  - Vibrational Stability of Pure Helium Stars Surrounded by Pure Hydrogen Envelopes
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1969
VL  - 22
IS  - 4
SP  - 497
EP  - 504
KW  - 
UR  - https://doi.org/10.1071/PH690497 
N2  - This paper investigates the influence of a pure hydrogen envelope on the vibrational stability of pure helium stars and establishes the limiting mass 88 a function of the fractional mass of such an envelope. It is found that an envelope with a mass fraction of the order of 10-4 will make the star vibrationa.lly stable, even when the total mass of the star is well above the limiting mass for pure helium stars. 
ER  -

