Anisotropic compact stellar solution in general relativity

被引:8
|
作者
Baskey, Lipi [1 ,2 ]
Ray, Saibal [3 ]
Das, Shyam [4 ]
Majumder, Shreya [5 ]
Das, Ananya [6 ]
机构
[1] Jadavpur Univ, Dept Math, Kolkata 700032, W Bengal, India
[2] Govt Gen Degree Coll, Dept Math, Kushmandi 733121, W Bengal, India
[3] GLA Univ, Ctr Cosmol Astrophys & Space Sci, Mathura 281406, Uttar Pradesh, India
[4] Malda Coll, Dept Phys, Malda 732101, W Bengal, India
[5] North Bengal St Xaviers Coll, Dept Phys, North Bengal St, Jalpaiguri 735135, W Bengal, India
[6] Univ Kalyani, Dept Phys, Nadia 741235, W Bengal, India
来源
EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 04期
关键词
EQUATION-OF-STATE; STRONGLY MAGNETIZED NEUTRON; ONE-PARAMETER GROUP; DYNAMICAL INSTABILITY; EQUILIBRIUM-MODELS; FLUID SPHERES; DENSE MATTER; QUARK STARS; MASS; FIELDS;
D O I
10.1140/epjc/s10052-023-11351-y
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
We present herein a new class of singularity-free interior solutions to describe realistic anisotropic compact stellar objects with spherically symmetric matter distribution. A specific form of anisotropy is assumed to obtain the exact solution for the field equation. Smooth matching of interior solutions thus obtained with the Schwarzschild exterior metric over the bounding surface of a compact star, together with the condition that the radial pressure vanishes at the boundary, is used to obtain the mathematical form for themodel parameters. The pulsar 4U1608-52 with its current estimated data (mass= 1.57 M circle dot and radius= 9.8 +/- 0.8 km; Ozel et al. in ApJ 820:28, 2016) is used to study the model graphically.
引用
收藏
页数:13
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