Self-gravitating gaseous spheres in 5D framework

被引：0
作者：
Kangal, E. E. [1 ]
机构：
[1] Mersin Univ, Sch Appl Technol & Management Erdemli, Comp Technol & Informat Syst, TR-33740 Mersin, Turkey
来源：
CHINESE JOURNAL OF PHYSICS | 2019年 / 58卷
关键词：
Polytrope; Dark energy; Kaluza-Klein; Cosmology; GENERALIZED CHAPLYGIN-GAS; HOLOGRAPHIC DARK ENERGY; PROBE WMAP OBSERVATIONS; OBSERVATIONAL H(Z) DATA; EQUATION-OF-STATE; COSMOLOGICAL CONSTANT; HUBBLE PARAMETER; SCALAR FIELD; CONSTRAINTS; MATTER;
D O I：
10.1016/j.cjph.2019.01.007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
One of the suitable theoretical ideas for the polytrope in the Kaluza-Klein cosmology is discussed. Assuming a 5-dimensional (5D) spacetime model described by the Kaluza-Klein theory of gravity, we implement the energy density and pressure of the polytrope which is a self-gravitating gaseous sphere and still very useful as a crude approximation for more realistic stellar models. Next, we obtain the best-fit values of auxiliary parameters given in the model according to recent observational dataset. Finally, we study some cosmological features and the thermodynamical stability of the model.
引用
收藏
页码：85 / 97
页数：13
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