Cosmological evolution of modified QCD ghost dark energy in dynamical Chern-Simons gravity

被引：14
|
作者：
Jawad, Abdul [1 ]
Sohail, Ayesha [1 ]
机构：
[1] COMSATS Inst Informat Technol, Dept Math, Lahore, Pakistan
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2015年 / 359卷 / 02期
关键词：
Dynamical Chern-Simons modify gravity; Modified Generalized ghost dark energy; Cold dark matter; Cosmological parameters; PROBE WMAP OBSERVATIONS; HUBBLE-SPACE-TELESCOPE; CONSTANT; CONSTRAINTS; MODELS;
D O I：
10.1007/s10509-015-2506-1
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we discuss the dark energy phenomenon by considering the modified QCD ghost dark energy in the framework of dynamical Chern-Simons modified gravity. We find analytical solution of scale factor and explore different cosmological parameters in this scenario. We observe that the deceleration parameter characterizes different phases of the universe under certain conditions of constant parameters. It is pointed out that equation of state parameter as well as cosmological planes (omega(D)-omega'(D) and r-s) provides the consistent results with the present day observations. Also, the squared speed of sound predicts the stability of the present dark energy model for all the time. We also discuss the dynamics of scalar field and potentials of various scalar field models and found interesting results in this framework.
引用
收藏
页数：9
相关论文
共 50 条
  • [1] Cosmological evolution of modified QCD ghost dark energy in dynamical Chern-Simons gravity
    Abdul Jawad
    Ayesha Sohail
    [J]. Astrophysics and Space Science, 2015, 359
  • [2] Cosmological Analysis of Dynamical Chern-Simons Modified Gravity via Dark Energy Scenario
    Jawad, Abdul
    Rani, Shamaila
    [J]. ADVANCES IN HIGH ENERGY PHYSICS, 2015, 2015
  • [3] Cosmological Analysis of Modified Holographic Ricci Dark Energy in Chern-Simons Modified Gravity
    Ali, Sarfraz
    Amir, M. Jamil
    [J]. ADVANCES IN HIGH ENERGY PHYSICS, 2019, 2019
  • [4] Interacting new holographic dark energy in dynamical Chern-Simons modified gravity
    Jawad, Abdul
    Rani, Shamaila
    Nawaz, Tanzeela
    [J]. EUROPEAN PHYSICAL JOURNAL PLUS, 2016, 131 (08):
  • [5] Interacting new holographic dark energy in dynamical Chern-Simons modified gravity
    Abdul Jawad
    Shamaila Rani
    Tanzeela Nawaz
    [J]. The European Physical Journal Plus, 131
  • [6] Ricci dark energy in Chern-Simons modified gravity
    Silva, J. G.
    Santos, A. F.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (08): : 1 - 3
  • [7] Cosmological Implications of the Generalized Entropy Based Holographic Dark Energy Models in Dynamical Chern-Simons Modified Gravity
    Younas, M.
    Jawad, Abdul
    Qummer, Saba
    Moradpour, H.
    Rani, Shamaila
    [J]. ADVANCES IN HIGH ENERGY PHYSICS, 2019, 2019
  • [8] Comment on Ricci dark energy in Chern-Simons modified gravity
    Myung, Yun Soo
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (08): : 1 - 4
  • [9] Dynamical Chern-Simons modified gravity, Godel Universe and variable cosmological constant
    Furtado, C.
    Nascimento, J. R.
    Petrov, A. Yu.
    Santos, A. F.
    [J]. PHYSICS LETTERS B, 2010, 693 (04) : 494 - 497
  • [10] Generalized ghost Tsallis holographic dark energy model in RS-II braneworld and dynamical Chern-Simons modified gravity
    Jawad, Abdul
    Hussain, Sabir
    Rani, Shamaila
    Qummer, Saba
    [J]. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2020, 17 (08)
12345