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Zhou Yuan, Xie Guangzhong, Wang Xugui, Tian Xingshi, Chen Lin. The Exact Solutions of Distribution of the Density of Material in A Relativistic Polytrope with A Compact Core[J]. Publications of the Yunnan Observatory, 1987, (1): 1-6.
Citation: Zhou Yuan, Xie Guangzhong, Wang Xugui, Tian Xingshi, Chen Lin. The Exact Solutions of Distribution of the Density of Material in A Relativistic Polytrope with A Compact Core[J]. Publications of the Yunnan Observatory, 1987, (1): 1-6.

The Exact Solutions of Distribution of the Density of Material in A Relativistic Polytrope with A Compact Core

  • On the basis of the paper(4),in this paper,we have re-discussed in detail the distribution of the density of material in a relativistic polytrope with a compact core.We solved the Euler equation and got some exact analytical solutions. Our results show that the distribution of the density of material in a relativistic polytrope with a compact core is inversely proportional to the cube of radius r (that is,n(r)∝r-3)and it is different from the isothermal gas sphere(n∝r-2). Thus, using observation one can distinguish between an isothermal gas. sphere (n∝r-2)and a relativistic polytrope with a compact core.
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