Analysis of relativistic stellar model under the influence of dark energy equation of state

被引:0
|
作者
Joshi, Ritika [1 ]
Fuloria, Pratibha [1 ]
Tamta, Pramesh [1 ]
机构
[1] Soban Singh Jeena Univ, Dept Phys, SSJ Campus, Almora 263601, Uttarakhand, India
关键词
Dark energy; Anisotropy; Compact stars; Einstein field equations; ACCELERATING UNIVERSE; STARS; REDSHIFT; CRACKING; MASS;
D O I
10.1016/j.newast.2024.102310
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Dark energy, one of the mysterious and impactful forms of energy in the cosmos has a crucial role in propelling the rapid expansion of the cosmos. As a result it is highly likely that dark energy interacts with astrophysical objects in some direct or indirect way. The present paper introduces a simplified method to simulate the interaction between energy and conspicuous baryonic matter. It is accomplished by using a dense pulsar named PSRJ1614-2230 as a representative model star. The study involves solving Einsteins field equations within the stars interior using the Kuchowicz spacetime framework. The solutions obtained are then analyzed across physical as well as geometrical parameters such as metric potentials, pressure, density and energy conditions. Based on this analysis, it is suggested that the formation of the star embraced with dark energy equation of state exhibits stability. Importantly the proposed stellar model does not have any singularities, meets the stability criteria. Additionally, numerical results for the adiabatic and abreu index indicate that the model star displays stiffness and resilience against radial adiabatic perturbations.
引用
收藏
页数:14
相关论文
共 50 条
  • [1] RELATIVISTIC STELLAR MODEL ADMITTING A QUADRATIC EQUATION OF STATE
    Sharma, R.
    Ratanpal, B. S.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2013, 22 (13):
  • [2] Stellar model of compact star with dark matter equation of state
    P. Mafa Takisa
    S. D. Maharaj
    M. L. Lekala
    Astrophysics and Space Science, 2021, 366
  • [3] Stellar model of compact star with dark matter equation of state
    Mafa Takisa, P.
    Maharaj, S. D.
    Lekala, M. L.
    ASTROPHYSICS AND SPACE SCIENCE, 2021, 366 (10)
  • [4] A new equation of state for dark energy model
    Feng, Lei
    Lu, Tan
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (11):
  • [5] A Relativistic Compact Stellar Model of Anisotropic Quark Matter Mixed with Dark Energy
    Grammenos, Theophanes
    Rahaman, Farook
    Ray, Saibal
    Deb, Debabrata
    Chowdhury, Sourav Roy
    ADVANCES IN HIGH ENERGY PHYSICS, 2021, 2021
  • [6] Transition of the dark energy equation of state in an interacting holographic dark energy model
    Wang, B
    Gong, YG
    Abdalla, E
    PHYSICS LETTERS B, 2005, 624 (3-4) : 141 - 146
  • [7] Mathematical Model of Relativistic Anisotropic Compact Stellar Model Admitting Linear Equation of State
    Sumita Banerjee
    Communications in Theoretical Physics, 2018, 70 (11) : 585 - 592
  • [8] Mathematical Model of Relativistic Anisotropic Compact Stellar Model Admitting Linear Equation of State
    Banerjee, Sumita
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2018, 70 (05) : 585 - 592
  • [9] Equation of state for an interacting holographic dark energy model
    Kim, H
    Lee, HW
    Myung, YS
    PHYSICS LETTERS B, 2006, 632 (5-6) : 605 - 609
  • [10] Variable Equation of State for Generalized Dark Energy Model
    Saibal Ray
    Farook Rahaman
    Utpal Mukhopadhyay
    Ruby Sarkar
    International Journal of Theoretical Physics, 2011, 50 : 2687 - 2696