Self-consistent embedded anisotropic quintessence compact stars in Rastall gravity via linear equation of state

被引:24
|
作者
Mustafa, G. [1 ]
Xia, Tie-Cheng [1 ]
Shamir, M. Farasat [2 ]
机构
[1] Shanghai Univ, Dept Math, Shanghai 200444, Peoples R China
[2] Natl Univ Comp & Emerging Sci, Lahore Campus, Islamabad, Pakistan
关键词
Rastall gravity; embedding approach; stellar structures; DARK ENERGY; F R; STABILITY ANALYSIS; MODELS;
D O I
10.1088/1402-4896/ac0ee6
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This study is devoted to exploring the stellar structures by employing the spherically static symmetric space-time in Rastall gravity via embedding approach. We calculate the modified field equations by plugging the quintessence field with an anisotropic source of fluid. Further, we match the exterior and interior solutions to calculate the junction conditions. By imposing the junction conditions, we calculate the values of involved parameters. Here, we use the observational data of 4U 1608-52, Cen X-3 and EXO 1785-240. We explore the basic properties of stellar structures like energy density, anisotropy, quintessence density, radial and tangential pressures. We also calculate the speeds of sound parameters and casuality criterion to discuss the stability of the stellar objects. The equilibrium criterion via TOV equation, redshift function, compactness, and mass function are also discussed. All these physical parameters show the viability and stability of the stellar objects in Rastall gravity.
引用
收藏
页数:18
相关论文
共 50 条
  • [21] Self-consistent measurement of the equation of state of liquid deuterium
    Falk, K.
    Regan, S. P.
    Vorberger, J.
    Barrios, M. A.
    Boehly, T. R.
    Fratanduono, D. E.
    Glenzer, S. H.
    Hicks, D. G.
    Hu, S. X.
    Murphy, C. D.
    Radha, P. B.
    Rothman, S.
    Jephcoat, A. P.
    Watt, J. S.
    Gericke, D. O.
    Gregori, G.
    HIGH ENERGY DENSITY PHYSICS, 2012, 8 (01) : 76 - 80
  • [22] THE SELF-CONSISTENT CELL MODEL EQUATION OF STATE FOR SOLIDS
    DIENES, GJ
    WELCH, DO
    PASKIN, A
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1980, 41 (12) : 1373 - 1379
  • [23] Compact stars with linear equation of state in isotropic coordinates
    Sifiso A. Ngubelanga
    Sunil D. Maharaj
    Subharthi Ray
    Astrophysics and Space Science, 2015, 357
  • [24] Compact stars with linear equation of state in isotropic coordinates
    Ngubelanga, Sifiso A.
    Maharaj, Sunil D.
    Ray, Subharthi
    ASTROPHYSICS AND SPACE SCIENCE, 2015, 357 (01)
  • [25] Anisotropic compact stars in presence of electromagnetic field, quintessence field and cosmological constant in f(G) gravity
    Das, Krishna Pada
    Debnath, Ujjal
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2022, 31 (09):
  • [26] Model for anisotropic compact stars via Chaplygin equation of state in Tolman space-time
    Kumar, Mahesh
    Kumar, Jitendra
    PHYSICA SCRIPTA, 2023, 98 (03)
  • [27] Anisotropic compacts stars on paraboloidal spacetime with linear equation of state
    V. O. Thomas
    D. M. Pandya
    The European Physical Journal A, 2017, 53
  • [28] Anisotropic compacts stars on paraboloidal spacetime with linear equation of state
    Thomas, V. O.
    Pandya, D. M.
    EUROPEAN PHYSICAL JOURNAL A, 2017, 53 (06):
  • [29] Compact static stars with polytropic equation of state in minimal dilatonic gravity
    Fiziev, Plamen
    Marinov, Kalin
    BULGARIAN ASTRONOMICAL JOURNAL, 2015, 23 : 3 - 13
  • [30] Anisotropic compact stars in self-interacting Brans-Dicke gravity
    M. Sharif
    Amal Majid
    Astrophysics and Space Science, 2020, 365