Strange Quark Star (SQS) in Tolman IV potential with density dependent B-parameter and charge

被引:4
作者
Goswami, K. B. [1 ]
Roy, R. [1 ]
Saha, A. [1 ,2 ]
Chattopadhyay, P. K. [1 ]
机构
[1] Coochbehar Panchanan Barma Univ, Dept Phys, Vivekananda St, Cooch Behar 736101, West Bengal, India
[2] Alipurduar Coll, Dept Phys, Alipurduar 736122, West Bengal, India
来源
EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 11期
关键词
EQUATION-OF-STATE; NEUTRON-STAR; BLACK-HOLES; FLUID SPHERES; FIELD; MASS; STABILITY; MODEL; EINSTEIN; ANALOG;
D O I
10.1140/epjc/s10052-022-11009-1
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
In this paper, the solutions of Einstein-Maxwell Field Equations for relativistic strange quark star in Tolman-IV potential considering MIT bag model EoS p = 1/3(rho-4B) of interior matter in presence of charge in higher dimensions is presented, where B is bag parameter. Here we consider density dependent B as it has more practical application. We note some interesting results. It is observed that interior of a strange quark star may contain bulk stable quarks as a whole having energy per baryon E-B < 930.4 MeV/fm(3) or stable quark matter core enclosed by a thin metastable quark matter layer enveloped by unstable quark matter. It is also found that interior composition depends on the value of space-time dimension (D) and net charge (Q). The model presented in this paper satisfies all the necessary stability and energy conditions for a viable stellar configuration. We also note the maximum mass of stable strange quark star is 1.773 M-circle dot for density dependent B and 1.684 M-circle dot for constant B.
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页数:20
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