RELATIVISTIC STELLAR MODEL ADMITTING A QUADRATIC EQUATION OF STATE

被引：117
|
作者：
Sharma, R. [1 ]
Ratanpal, B. S. [2 ]
机构：
[1] PD Womens Coll, Dept Phys, Jalpaiguri 735101, India
[2] Maharaja Sayajirao Univ Baroda, Fac Engn & Technol, Dept Appl Math, Vadodara 390001, Gujarat, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2013年 / 22卷 / 13期
关键词：
General relativity; exact solution; compact star; equation of state; ANISOTROPIC SPHERES; MAXIMUM MASS; GENERAL-SOLUTION; ENERGY DENSITY; STRANGE STARS;
D O I：
10.1142/S0218271813500740
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A class of solutions describing the interior of a static spherically symmetric compact anisotropic star is reported. The analytic solution has been obtained by utilizing the Finch and Skea [Class. Quantum Grav. 6 (1989) 467] ansatz for the metric potential grr which has a clear geometric interpretation for the associated background spacetime. Based on physical grounds, appropriate bounds on the model parameters have been obtained and it has been shown that the model admits an equation of state (EOS) which is quadratic in nature.
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页数：15
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