Mixed fluid cosmological model in f(R, T) gravity

被引:4
|
作者
Sahoo, Parbati [1 ]
Taori, Barkha [2 ]
Mahanta, K. L. [3 ]
机构
[1] Vellore Inst Technol, SAS, Dept Math, Chennai Campus, Chennai 600127, Tamil Nadu, India
[2] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078, India
[3] CV Raman Coll Engn, Dept Math, Bhubaneswar 752054, India
关键词
f(R; T); gravity; mixed fluid; time varying deceleration parameter; Bianchi type-I space-time; s-r parameter; DARK ENERGY-MODEL; PROBE WMAP OBSERVATIONS; UNIVERSE; DECELERATION; ANISOTROPY; CONSTANT; CONSTRAINTS; SUPERNOVAE; RESOLUTION; RELEASE;
D O I
10.1139/cjp-2019-0494
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We construct a locally rotationally symmetric (LRS) Bianchi type-I cosmological model inf(R, T) theory of gravity when the source of gravitation is a mixture of barotropic fluid and dark energy (DE) by employing a time-varying deceleration parameter. We observe through the behavior of the state finder parameters (r, s) that our model begins from the Einstein static era and goes to ACDM era. The equation of state (EOS) parameter (omega(d)) for DE varies from the phantom (omega < -1) phase to quintessence (omega > -1) phase, which is consistent with observational results. It is found that the discussed model can reproduce the current accelerating phase of the expansion of the universe.
引用
收藏
页码:1015 / 1022
页数:8
相关论文
共 50 条
  • [41] Cosmological sudden singularities in f(R, T) gravity
    Tiago B. Gonçalves
    João Luís Rosa
    Francisco S. N. Lobo
    [J]. The European Physical Journal C, 82
  • [42] Anisotropic cosmological model with a massive scalar field in f(R, T) gravity
    Aditya, Y.
    [J]. BULGARIAN ASTRONOMICAL JOURNAL, 2023, 39
  • [43] Cosmological aspects of f(R, T) gravity in a simple model with a parametrization of q
    Nagpal, Ritika
    Pacif, Shibesh Kumar Jas
    [J]. EUROPEAN PHYSICAL JOURNAL PLUS, 2021, 136 (08):
  • [44] Anisotropic Bianchi-III cosmological model in f(R, T) gravity
    Sahoo, P. K.
    Sahu, S. K.
    Nath, A.
    [J]. EUROPEAN PHYSICAL JOURNAL PLUS, 2016, 131 (01): : 1 - 10
  • [45] Cosmological model with variable deceleration parameter in f(R, T) modified gravity
    Tiwari, Rishi Kumar
    Beesham, Aroonkumar
    Shukla, Bhupendra
    [J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2018, 15 (07)
  • [46] Cosmological evolutions in Tsujikawa model of f(R) Gravity
    Cen, Jian-Yong
    Chien, Shang-Yu
    Geng, Chao-Qiang
    Lee, Chung-Chi
    [J]. PHYSICS OF THE DARK UNIVERSE, 2019, 26
  • [47] A constrained cosmological model in f (R, Lm) gravity
    Singh, J. K.
    Shaily
    Myrzakulov, Ratbay
    Balhara, Harshna
    [J]. NEW ASTRONOMY, 2023, 104
  • [48] Higher Dimensional Cosmological Models Filled with Perfect Fluid in f(R,T) Theory of Gravity
    G. C. Samanta
    S. N. Dhal
    [J]. International Journal of Theoretical Physics, 2013, 52 : 1334 - 1344
  • [49] Transit dark energy string cosmological models with perfect fluid in F(R, T)-gravity
    Zia, Rashid
    Maurya, Dinesh Chandra
    Pradhan, Anirudh
    [J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2018, 15 (10)
  • [50] Higher Dimensional Cosmological Models Filled with Perfect Fluid in f(R,T) Theory of Gravity
    Samanta, G. C.
    Dhal, S. N.
    [J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2013, 52 (04) : 1334 - 1344