A new model for spherically symmetric charged compact stars of embedding class 1

被引:68
|
作者
Maurya, S. K. [1 ]
Gupta, Y. K. [2 ]
Ray, Saibal [3 ]
Deb, Debabrata [4 ]
机构
[1] Univ Nizwa, Dept Math & Phys Sci, Coll Arts & Sci, Nizwa, Oman
[2] Raj Kumar Goel Inst Technol, Dept Math, Ghaziabad, UP, India
[3] Govt Coll Engn & Ceram Technol, Dept Phys, Kolkata 700010, W Bengal, India
[4] Indian Inst Engn Sci & Technol, Dept Phys, Howrah 711103, W Bengal, India
来源
EUROPEAN PHYSICAL JOURNAL C | 2017年 / 77卷 / 01期
关键词
ELECTROMAGNETIC-MASS MODELS; FLUID SPHERES; GRAVITATIONAL SOURCES;
D O I
10.1140/epjc/s10052-017-4604-4
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 the present study we search for a new stellar model with spherically symmetric matter and a charged distribution in a general relativistic framework. The model represents a compact star of embedding class 1. The solutions obtained here are general in nature, having the following two features: first of all, the metric becomes flat and also the expressions for the pressure, energy density, and electric charge become zero in all the cases if we consider the constant A = 0, which shows that our solutions represent the so-called 'electromagnetic mass model' [17], and, secondly, the metric function nu(r), for the limit n tending to infinity, converts to nu(r) = Cr-2 + ln B, which is the same as considered by Maurya et al. [11]. We have investigated several physical aspects of the model and find that all the features are acceptable within the requirements of contemporary theoretical studies and observational evidence.
引用
收藏
页数:12
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