The Schoenberg-Chandrasekhar limit: A polytropic approximation
- Cite this article as:
- Beech, M. Astrophys Space Sci (1988) 147: 219. doi:10.1007/BF00645666
The existence of a maximum isothermal core mass fraction (qmax), the Schoenberg-Chandrasekhar limit, is one of the ‘classic’ results from the theory of stellar structure. This limit can be demonstrated through a simplified composite polytrope model in which an isothermal core is surrounded by ann=1 polytrope envelope. While this model underestimatesqmas by ∼25% in the homogeneous case, it is accurate to within 5% in the more realistic inhomogeneous situation.