A Class of Charged Relativistic Superdense Star Models

被引:13
|
作者
Maurya, S. K. [1 ]
Gupta, Y. K. [1 ]
Pratibha [1 ]
机构
[1] Indian Inst Technol, Dept Math, Roorkee 247667, Uttar Pradesh, India
关键词
Reissner-Nordstrom metric; Charged fluids; Superdense star; General relativity; SCHWARZSCHILDS INTERIOR SOLUTION; ANALOGS;
D O I
10.1007/s10773-011-0968-7
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this article we obtain a new class of well behaved charged solutions by using particular forms of the metric potential g(44) and electric intensity, which involves a parameter K. The metric describing the superdense stars joins smoothly with the Reissner-Nordstrom metric at the pressure free boundary. This class of solutions describes well behaved charged fluid balls. The class of solutions gives range of parameter K (0.13 <= K <= 1.9999) for which the solution is well behaved hence, suitable for modeling of super dense star. The interior of the stars possess there energy density, pressure, pressure-density ratio and velocity of sound to be monotonically decreasing towards the pressure free interface. In view of the surface density 2 x 10(14) gm/cm(3), the maximum mass of the charged fluid balls and corresponding radius are 0.4711M(Theta) and 7.0122 km. The red shift at the centre and boundary are found to be 0.1640 and 0.1100 respectively.
引用
收藏
页码:943 / 953
页数:11
相关论文
共 50 条
  • [21] Relativistic modeling of charged super-dense star with Einstein-Maxwell equations in general relativity
    Pant, Neeraj
    Maurya, S. K.
    APPLIED MATHEMATICS AND COMPUTATION, 2012, 218 (17) : 8260 - 8268
  • [22] Well-behaved relativistic charged super-dense star models
    Shahab Faruqi
    Neeraj Pant
    Astrophysics and Space Science, 2012, 341 : 485 - 490
  • [23] Well-behaved relativistic charged super-dense star models
    Faruqi, Shahab
    Pant, Neeraj
    ASTROPHYSICS AND SPACE SCIENCE, 2012, 341 (02) : 485 - 490
  • [24] Charged analogue of Vlasenko-Pronin superdense star with variable cosmological term
    Feroze, Tooba
    Nazeer, Ghazala
    PRAMANA-JOURNAL OF PHYSICS, 2016, 86 (04): : 789 - 800
  • [25] Core-envelope models of superdense star with anisotropic envelope
    Thomas, VO
    Ratanpal, BS
    Vinodkumar, PC
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2005, 14 (01): : 85 - 96
  • [26] New class of Well behaved exact solutions of relativistic charged white-dwarf star with perfect fluid
    Neeraj Pant
    Astrophysics and Space Science, 2011, 334 : 267 - 271
  • [27] New class of Well behaved exact solutions of relativistic charged white-dwarf star with perfect fluid
    Pant, Neeraj
    ASTROPHYSICS AND SPACE SCIENCE, 2011, 334 (02) : 267 - 271
  • [28] Superdense star in a spacetime with minimal length
    Kiran, S. Bhanu
    Harikumar, E.
    Rajagopal, Vishnu
    MODERN PHYSICS LETTERS A, 2019, 34 (15)
  • [29] Relativistic models of a class of compact objects
    Deb, Rumi
    Paul, Bikash Chandra
    Tikekar, Ramesh
    PRAMANA-JOURNAL OF PHYSICS, 2012, 79 (02): : 211 - 222
  • [30] A class of regular and well behaved charge analogue of Kuchowicz's relativistic super-dense star model
    Gupta, Y. K.
    Maurya, Sunil Kumar
    ASTROPHYSICS AND SPACE SCIENCE, 2011, 332 (02) : 415 - 421