Cylindrical Gravastar Like-Structures in f (G) Gravity

被引:10
作者
Bhatti, M. Z. [1 ]
Yousaf, Z. [1 ]
Rehman, A. [1 ]
机构
[1] Univ Punjab, Dept Math, Quaid I Azam Campus, Lahore 54590, Pakistan
来源
GALAXIES | 2022年 / 10卷 / 02期
关键词
self-gravitation; isotropic matter; THIN-SHELL WORMHOLES; EQUATION;
D O I
10.3390/galaxies10020040
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The aim of this manuscript is to explore singularity-free solution for a specific self-gravitating highly dense object known as gravastar suggested by Mazur and Mottola, in the context of f(G) gravity theory. Gravastars are regarded as a possible alternate to black hole. To derive modified field equations and law of conservation related to Gauss-Bonnet gravity, we assume cylindrically symmetric irrotational configuration. Particular equation of states are used for the illustration of three sectors of gravastar model. Furthermore, we are intended to obtain a regular solution for our model and graphs will be used to elaborate various substantial characteristics of it.
引用
收藏
页数:13
相关论文
共 63 条
[1]   Tidal deformability and radial oscillations of anisotropic polytropic spheres [J].
Arbanil, Jose D., V ;
Panotopoulos, Grigoris .
PHYSICAL REVIEW D, 2022, 105 (02)
[2]   Higher dimensional charged gravastar admitting conformal motion [J].
Bhar, Piyali .
ASTROPHYSICS AND SPACE SCIENCE, 2014, 354 (02) :457-462
[3]   Dynamical instability of charged self-gravitating stars in modified gravity [J].
Bhatti, M. Z. ;
Yousaf, Z. .
CHINESE JOURNAL OF PHYSICS, 2021, 73 :115-135
[4]   Gravastars in f (R, G) gravity [J].
Bhatti, M. Z. ;
Yousaf, Z. ;
Rehman, A. .
PHYSICS OF THE DARK UNIVERSE, 2020, 29
[5]   Dynamical analysis of self-gravitating stars in modified Gauss-Bonnet gravity [J].
Bhatti, M. Z. ;
Yousaf, Z. ;
Khadim, A. .
PHYSICAL REVIEW D, 2020, 101 (10)
[6]   Charged gravastars with cylindrical spacetime [J].
Bhatti, M. Z. .
MODERN PHYSICS LETTERS A, 2020, 35 (10)
[7]   Locally isotropic gravastars with cylindrical spacetime [J].
Bhatti, M. Z. ;
Yousaf, Z. ;
Ajmal, M. .
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2019, 28 (09)
[8]   Dynamical variables and evolution of the universe [J].
Bhatti, M. Zaeem-ul-Haq ;
Yousaf, Z. .
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2017, 26 (04)
[9]   Born-Infeld phantom gravastars [J].
Bilic, N ;
Tupper, GB ;
Viollier, RD .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (02)
[10]   RX J1856-3754: Evidence for a stiff equation of state [J].
Braje, TM ;
Romani, RW .
ASTROPHYSICAL JOURNAL, 2002, 580 (02) :1043-1047