Extending the weak cosmic censorship conjecture to the charged Buchdahl star by employing the gedanken experiments

被引：9

作者：

Shaymatov, Sanjar ^{[1
,2
,3
,4
]}

Dadhich, Naresh ^{[5
]}

机构：

[1] Zheijiang Univ Technol, Inst Theoret Phys & Cosmol, Hangzhou 310023, Peoples R China

[2] Akfa Univ, Milliy Bog St 264, Tashkent 111221, Uzbekistan

[3] Natl Res Univ TIIAME, Inst Fundamental & Appl Res, Kori Niyoziy 39, Tashkent 100000, Uzbekistan

[4] Natl Univ Uzbekistan, Tashkent 100174, Uzbekistan

[5] Inter Univ Ctr Astron & Astrophys, Post Bag 4, Pune 411007, India

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2023年 / 06期

基金：

中国国家自然科学基金;

关键词：

cosmic singularity; Gravastars; gravity; massive stars; GRAVITATIONAL COLLAPSE; BLACK-HOLE; NOETHER CHARGE;

D O I：

10.1088/1475-7516/2023/06/010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we wish to investigate the weak cosmic censorship conjecture (WCCC) for the non black hole object, Buchdahl star and test its validity. It turns out that the extremal limit for the star is over-extremal for black hole, Q2/M2 < 9/8 > 1; i.e., it could have 9/8 > Q2/M2 > 1. By carrying out both linear and non-linear perturbations, we establish the same result for the Buchdahl star as well. That is, as for black hole it could be overcharged at the linear perturbation while the result is overturned when the non-linear perturbations are included. Thus WCCC is always obeyed by the Buchdahl star.

引用

页数：16