Models of charged compact objects with generalized polytropic equation of state

被引：16

作者：

Noureen, I. ^{[1
]}

Mardan, S. A. ^{[1
]}

Azam, M. ^{[2
]}

Shahzad, W. ^{[1
]}

Khalid, S. ^{[3
]}

机构：

[1] Univ Management & Technol, Dept Math, Lahore, Pakistan

[2] Univ Educ, Multan Campus, Lahore, Multan, Pakistan

[3] Univ Sargodha, Dept Math, Lahore Campus, Sargodha, Pakistan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 04期

关键词：

ANISOTROPIC SPHERES; STARS;

D O I：

10.1140/epjc/s10052-019-6806-4

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 work, we have studied the combined effect of charge and anisotropy on gravitational interaction of compact sources by making use of generalized polytropic equation of state (GPEoS). We have utilized four different values of polytropic index to ascertain the solution of Einstein-Maxwell field equations and develop a new class of spherically symmetric charged polytropic models. Further, we regain the masses of realistic strange stars 4U 1820-30, PSR J1614-2230, PSR J1903+327, Vela 4U and Vela X-1 that shows viability of the present study. Stability of presented models is analyzed by determining speed of sound that indicates the viability of newly generated models.

引用

页数：9

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