Physical characteristics and maximum allowable mass of hybrid star in the context of f (Q) gravity

被引:43
|
作者
Bhar, Piyali [1 ]
Pradhan, Sneha [2 ]
Malik, Adnan [3 ,4 ]
Sahoo, P. K. [2 ,5 ]
机构
[1] Govt Gen Degree Coll Singur, Dept Math, Hooghly 712409, W Bengal, India
[2] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078, India
[3] Zhejiang Normal Univ, Sch Math Sci, Jinhua, Zhejiang, Peoples R China
[4] Univ Management & Technol, Dept Math, Sialkot Campus, Sialkot, Pakistan
[5] Transilvania Univ Brasov, Fac Math & Comp Sci, Eroilor 29, Brasov, Romania
来源
EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 07期
关键词
NEUTRON-STARS; COMPACT STARS; DYNAMICAL INSTABILITY; LINEAR-EQUATION; RADIUS; INFLATION; CRACKING; BINARY; MODEL; LIMIT;
D O I
10.1140/epjc/s10052-023-11745-y
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
In this study, we explore several new characteristics of a static anisotropic hybrid star with strange quarkmatter (SQM) and ordinary baryonicmatter (OBM) distribution. Here, we use the MIT bag model equation of state to connect the density and pressure of SQM inside stars, whereas the linear equation of state p(r) = alpha rho - beta connects the radial pressure and matter density caused by baryonic matter. The stellar model was developed under a background of f (Q) gravity using the quadratic form of f (Q). We utilized the Tolman-Kuchowicz ansatz (Tolman in Phys. Rev. 55:364-373, 1939; Kuchowicz in Acta Phys Pol 33: 541, 1968) to find the solutions to the field equations under modified gravity. We have matched the interior solution to the external Schwarzschild spacetime in order to acquire the numerical values of themodel parameters. We have selected the starHer X-1 to develop various profiles of themodel parameters. Several significant physical characteristics have been examined analytically and graphically, including matter densities, tangential and radial pressures, energy conditions, anisotropy factor, redshirt, compactness, etc. The main finding is that there is no core singularity present in the formations of the star under investigation. The nature of mass and the bag constant B-g have been studied in details through equi-mass and equi- B-g contour. The maximum allowable mass and the corresponding radius have been obtained via M - R plots.
引用
收藏
页数:19
相关论文
共 50 条
  • [1] Physical characteristics and maximum allowable mass of hybrid star in the context of f(Q) gravity
    Piyali Bhar
    Sneha Pradhan
    Adnan Malik
    P. K. Sahoo
    The European Physical Journal C, 83
  • [2] Exploring physical properties of minimally deformed strange star model and constraints on maximum mass limit in f(Q) gravity
    Maurya, S. K.
    Mustafa, G.
    Govender, M.
    Singh, Ksh. Newton
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2022, (10):
  • [3] Effect of decoupling parameters on maximum allowable mass of anisotropic stellar structure constructed by mass constraint approach in f(Q)-gravity
    Maurya, S. K.
    Aziz, Abdul
    Singh, Ksh. Newton
    Das, Amit
    Myrzakulov, Kairat
    Ray, Saibal
    EUROPEAN PHYSICAL JOURNAL C, 2024, 84 (03):
  • [4] Effect of decoupling parameters on maximum allowable mass of anisotropic stellar structure constructed by mass constraint approach in f(Q)-gravity
    S. K. Maurya
    Abdul Aziz
    Ksh. Newton Singh
    Amit Das
    Kairat Myrzakulov
    Saibal Ray
    The European Physical Journal C, 84
  • [5] Anisotropic Strange Star Model Beyond Standard Maximum Mass Limit by Gravitational Decoupling in f(Q)$f(Q)$ Gravity
    Maurya, S. K.
    Singh, Ksh Newton
    Lohakare, Santosh, V
    Mishra, B.
    FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS, 2022, 70 (11):
  • [6] Structure, maximum mass, and stability of compact stars in f(Q,T) gravity
    Nashed, G.G.L.
    Harko, Tiberiu
    European Physical Journal C, 2024, 84 (10):
  • [7] Hybrid star within f ( G ) gravity
    Rej, Pramit
    CHINESE JOURNAL OF PHYSICS, 2024, 89 : 174 - 186
  • [8] Study on physical properties and maximum mass limit of Finch-Skea anisotropic model under Karmarkar condition in f(Q)-gravity
    Mustafa, G.
    Ditta, Allah
    Mumtaz, Saadia
    Maurya, S. K.
    Sofuoglu, Deger
    CHINESE JOURNAL OF PHYSICS, 2024, 88 : 938 - 954
  • [9] Physical properties and maximum allowable mass-radius relation of complexity-free compact stellar objects within modified f(R,T) gravity formalism
    MKJasim
    SKMaurya
    Abdelghani Errehymy
    Ali Khalid Jassim
    Kottakkaran Sooppy Nisar
    AbdelHaleem AbdelAty
    Chinese Physics C, 2024, 48 (07) : 276 - 291
  • [10] Physical properties and maximum allowable mass-radius relation of complexity-free compact stellar objects within modified f(R,T) gravity formalism
    Jasim, M. K.
    Maurya, S. K.
    Errehymy, Abdelghani
    Khalid, Ali Jassim
    Sooppy, Kottakkaran Nisar
    Abdel-Aty, Abdel-Haleem
    CHINESE PHYSICS C, 2024, 48 (07)