Strange star admitting Chaplygin equation of state in Finch-Skea spacetime

被引：69

作者：

Bhar, Piyali ^{[1
]}

机构：

[1] Gopinathpur High Sch HS, Dept Math, Hooghly 712403, W Bengal, India

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2015年 / 359卷 / 02期

关键词：

General relativity; Finch-Skea spacetime; Chaplygin equation of state; Strange star; REDSHIFT; SUPERNOVAE; STABILITY; MASS;

D O I：

10.1007/s10509-015-2492-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the present paper we propose a new model of an anisotropic strange star which admits the Chaplygin equation of state. The exterior spacetime is described by a Schwarzschild line element. The model is developed by assuming the Finch-Skea ansatz (Finch and Skea in Class. Quantum Gravity 6: 467, 1989). We obtain the model parameters in closed form. Our model is free from a central singularity. Choosing some particular values for the parameter we show that our model corroborates the observational data of the strange star PSR J1614-2230 (Gangopadhyay et al. in Mon. Not. R. Astron. Soc. 431:3216, 2013).

引用

页数：9

共 32 条

[1] Sharp Bounds on the Critical Stability Radius for Relativistic Charged Spheres [J].

Andreasson, Hakan .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 2009, 288 (02) :715-730

[2] Maximum mass of a spherically symmetric isotropic star [J].

Barraco, D ;

Hamity, VH .

PHYSICAL REVIEW D, 2002, 65 (12) :5

[3]

Benaoum H. B, 2002, ARXIVHEPTH0205140

[4] Chaplygin dark star -: art. no. 123512 [J].

Bertolami, O ;

Páramos, J .

PHYSICAL REVIEW D, 2005, 72 (12)

[5] Vaidya-Tikekar type superdense star admitting conformal motion in presence of quintessence field [J].

Bhar, Piyali .

EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (03) :1-9

[6] Strange quintessence star in Krori-Barua spacetime [J].

Bhar, Piyali .

ASTROPHYSICS AND SPACE SCIENCE, 2015, 356 (02) :365-373

[7] Singularity-free anisotropic strange quintessence star [J].

Bhar, Piyali .

ASTROPHYSICS AND SPACE SCIENCE, 2015, 356 (02) :309-318

[8] The dark energy star and stability analysis [J].

Bhar, Piyali ;

Rahaman, Farook .

EUROPEAN PHYSICAL JOURNAL C, 2015, 75 (02) :1-12

[9] Exact Solution of a (2+1)-Dimensional Anisotropic Star in Finch and Skea Spacetime [J].

Bhar, Piyali ;

Rahaman, Farook ;

Biswas, Ritabrata ;

Fatima, Hafiza Ismat .

COMMUNICATIONS IN THEORETICAL PHYSICS, 2014, 62 (02) :221-226

[10] COLLAPSED NUCLEI [J].

BODMER, AR .

PHYSICAL REVIEW D, 1971, 4 (06) :1601-&

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