Dynamics and epicyclic motions of particles around the Schwarzschild–de Sitter black hole in perfect fluid dark matter [PDF]
European Physical Journal C: Particles and Fields, 2021 In this paper, we investigate circular orbits for test particles around the Schwarzschild–de Sitter (dS) black hole surrounded by perfect fluid dark matter.
Javlon Rayimbaev +2 more
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Covariant generalized holographic dark energy and accelerating universe [PDF]
European Physical Journal C: Particles and Fields, 2017 We propose the generalized holographic dark energy model where the infrared cutoff is identified with the combination of the FRW universe parameters: the Hubble rate, particle and future horizons, cosmological constant, the universe lifetime (if finite ...
Shin’ichi Nojiri, S. D. Odintsov
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Modeling holographic dark energy with particle and future horizons
Nuclear Physics B, 2020 In this work we explore some cosmological properties coming from the particle and future horizons when are considered as candidates to model the dark energy sector within a holographic context in a flat Friedmann-Lemaitre-Robertson-Walker universe; we ...
Miguel Cruz, Samuel Lepe
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Instability and phase transitions of a rotating black hole in the presence of perfect fluid dark matter [PDF]
European Physical Journal C: Particles and Fields, 2020 In this paper, we study the thermodynamic features of a rotating black hole surrounded by perfect fluid dark matter. We analyze the critical behavior of the black hole by considering the known relationship between pressure and cosmological constant.
Seyed Hossein Hendi +3 more
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Dark Energy from Wet Dark Fluid
, 2004 11 pages JHEP 6 figures; v2 added references, candidate microphysical model and edited to conserve length; v3 major revision: images enlarged, paper extended to include new discussion and ...
R. Holman, Siddartha Naidu
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Barotropic fluid compatible parametrizations of dark energy [PDF]
European Physical Journal C: Particles and Fields, 2020 Parametrizations of equation of state parameter as a function of the scale factor or redshift are frequently used in dark energy modeling. The question investigated in this paper is if parametrizations proposed in the literature are compatible with the ...
Dalibor Perković, Hrvoje Štefančić
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Charged Lovelock black holes in the presence of dark fluid with a nonlinear equation of state [PDF]
The European Physical Journal Plus, 2020 We consider a model that charged static spherically symmetric black hole is surrounded by dark fluid with nonlinear equation of state $$p_\mathrm{d}=-B/\rho _\mathrm{d}$$ p d = - B / ρ d .
Xiangqian Li, Bo Chen, Li-li Xing
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Astronomical bounds on the modified Chaplygin gas as a unified dark fluid model [PDF]
Astronomy & Astrophysics, 2019 The modified Chaplygin gas could be considered to abide by the unified dark fluid model because the model might describe the past decelerating matter dominated era and at present time it provides an accelerating expansion of the Universe.
Hang Li, Weiqiang Yang, L L Gai
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Thin accretion disc luminosity and its image around rotating black holes in perfect fluid dark matter [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Motivated by the fact that the universe is dominated by dark matter and dark energy, we consider rotating black holes surrounded by perfect fluid dark matter and study the accretion process in thin disk around such black holes.
Malihe Heydari-Fard +2 more
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Euler–Heisenberg black hole surrounded by perfect fluid dark matter [PDF]
European Physical Journal C: Particles and FieldsA generation method of new metric in the case of static spherically symmetric space-time is derived. Using this approach, we construct a metric which describes Euler–Heisenberg black hole surrounded by perfect fluid dark matter and investigate its ...
Shi-Jie Ma +3 more
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