Charged compact stars with color-flavor-locked strange quark matter in

被引:13
|
作者
Tangphati, Takol [1 ]
Panotopoulos, Grigoris [2 ]
Banerjee, Ayan [3 ]
Pradhan, Anirudh [4 ]
机构
[1] King Mongkuts Univ Technol Thonburi, Fac Sci, Theoret & Computat Sci Ctr TaCS, Theoret & Computat Phys Grp, 126 Prachauthid Rd, Bangkok 10140, Thailand
[2] Univ La Frontera, Dept Ciencias Fis, Casilla 54 D, Temuco 4811186, Chile
[3] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban, South Africa
[4] GLA Univ, Ctr Cosmol Astrophys & Space Sci, Mathura 281406, Uttar Pradesh, India
关键词
Charged star; Quark matter; f(RT) gravity; MODIFIED GRAVITY; DENSITY; QCD;
D O I
10.1016/j.cjph.2022.12.014
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Due to the high density of neutron stars, there is still an open question on the complete structure of the inner core of compact object. It is a great challenge to propose a model describing the highly-dense matter of neutron stars since there are neither experimentally nor observationally adequate results. In theoretical physics, Quantum Chromodynamics (QCD) predicts that at high densities and low temperatures the inner core of neutron stars could be made of exotic quark matter in the color-flavor-locked (CFL) phase of color superconductivity. Regarding the equation-of-state, we predict the existence of electrically charged strange quark stars in the background of the modified theory of gravity f(R, T). In our discussion, we assume a linear relation between charge density and the fluid energy density, and also utilize the f(R, T) = R+2fiT model to numerically compute the generalized Tolman-Oppenheimer-Volkoff (TOV) structure equations. In order to compute the properties of quark stars, we discuss the mass-radius profile, the effect of the charge in the stellar interior, factor of compactness, and mass-central energy density relation for stellar stability. Finally, we provide a set of basic differences between the standard Einstein-Maxwell gravity and the modified f(R, T) gravity theory.
引用
收藏
页码:62 / 74
页数:13
相关论文
共 50 条
  • [41] Bulk Properties of Hybrid Stars with the Color-Flavor Locked Quark Matter Core
    Wang Hong-Yan
    Liu Guang-Zhou
    Wu Yao-Rui
    Xu Yan
    Zhu Ming-Feng
    Bao, Tmurbagan
    Zhao En-Guang
    CHINESE PHYSICS LETTERS, 2013, 30 (06)
  • [42] Bulk Properties of Hybrid Stars with the Color-Flavor Locked Quark Matter Core
    王红岩
    刘广洲
    吴姚睿
    许妍
    朱明枫
    包特木尔巴根
    赵恩广
    Chinese Physics Letters, 2013, 30 (06) : 62 - 66
  • [43] Unlocking color and flavor in superconducting strange quark matter
    Alford, M
    Berges, J
    Rajagopal, K
    NUCLEAR PHYSICS B, 1999, 558 (1-2) : 219 - 242
  • [44] Properties of color-flavor locked strange quark matter in an external strong magnetic field
    崔帅帅
    彭光雄
    陆振烟
    彭程
    徐建峰
    Nuclear Science and Techniques, 2015, 26 (04) : 85 - 91
  • [45] Neutrino scattering off pair-breaking and collective excitations in superfluid neutron matter and in color-flavor-locked quark matter
    Kundu, J
    Reddy, S
    PHYSICAL REVIEW C, 2004, 70 (05): : 055803 - 1
  • [46] Properties of color-flavor locked strange quark matter in an external strong magnetic field
    Cui Shuai-Shuai
    Peng Guang-Xiong
    Lu Zhen-Yan
    Peng Cheng
    Xu Jian-Feng
    NUCLEAR SCIENCE AND TECHNIQUES, 2015, 26 (04)
  • [47] Color-flavor locked strange quark matter in a mass density-dependent model
    Chen Yue-De
    Peng Guang-Xiong
    Wen Xin-Jian
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2007, 31 (03): : 269 - 273
  • [48] Magnetized color flavor locked state and compact stars
    R. González Felipe
    D. Manreza Paret
    A. Pérez Martınez
    The European Physical Journal A, 2011, 47
  • [49] Neutrino rates in color flavor locked quark matter
    Reddy, S
    Sadzikowski, M
    Tachibana, M
    NUCLEAR PHYSICS A, 2003, 721 : 309C - 312C
  • [50] Neutrino rates in color flavor locked quark matter
    Reddy, S
    Sadzikowski, M
    Tachibana, M
    NUCLEAR PHYSICS A, 2003, 714 (1-2) : 337 - 351