Results 11 to 20 of about 738,435 (332)
Constraining the dark fluid [PDF]
Physical Review D, 2009 Cosmological observations are normally fit under the assumption that the dark sector can be decomposed into dark matter and dark energy components.
Gao, Changjun +3 more
core +6 more sources
Dissipative Unified Dark Fluid Model [PDF]
International Journal of Modern Physics D, 2018 We consider a unified dissipative dark fluid model. Our fluid contains an adiabatic part plus a bulk viscous one. The adiabatic part has the ability to asymptote between two power laws and so can interpolate between the dust and dark energy equations of ...
Elkhateeb, Esraa
core +3 more sources
Viscous dark fluid universe [PDF]
Physical Review D, 2010 We investigate the cosmological perturbation dynamics for a universe consisting of pressureless baryonic matter and a viscous fluid, the latter representing a unified model of the dark sector. In the homogeneous and isotropic background the \textit{total}
A. Avelino +4 more
core +3 more sources
Electrodynamics of a Cosmic Dark Fluid [PDF]
Symmetry, 2016 Cosmic Dark Fluid is considered as a non-stationary medium, in which electromagnetic waves propagate, and magneto-electric field structures emerge and evolve.
Balakin, Alexander B.
core +6 more sources
The Logotropic Dark Fluid as a unification of dark matter and dark energy
Physics Letters B, 2016 We propose a heuristic unification of dark matter and dark energy in terms of a single “dark fluid” with a logotropic equation of state P=Aln(ρ/ρP), where ρ is the rest-mass density, ρP=5.16×1099gm−3 is the Planck density, and A is the logotropic ...
Pierre-Henri Chavanis
doaj +3 more sources
Interacting viscous dark fluids [PDF]
Physical Review D, 2013 16 pages, 11 figures, 5 ...
Arturo Avelino +2 more
openalex +4 more sources
Effective fluid description of the dark universe
Physics Letters B, 2018 We propose an effective anisotropic fluid description for a generic infrared-modified theory of gravity. In our framework, the additional component of the acceleration, commonly attributed to dark matter, is explained as a radial pressure generated by ...
M. Cadoni +4 more
doaj +5 more sources
Dark viscous fluid coupled with dark matter and future singularity [PDF]
The European Physical Journal C, 2010 11 ...
Lorenzo Sebastiani
openalex +4 more sources
Perfect fluid dark matter model revisited
Proceedings of Tomsk State University of Control Systems and Radioelectronics, 2016 We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber-Visser approach of combined observations of rotation curves and lensing to a first post-Newtonian approximation to «measure» the equation of state ω( r ) of ...
A. A. Potapov +2 more
openalex +3 more sources
Thermodynamical analysis of charged rotating black hole surrounded by perfect fluid dark matter
Nuclear Physics B, 2023 This paper is devoted to studying thermodynamics and particle acceleration around charged rotating BHs surrounded by perfect fluid dark matter. In the beginning, we discuss BH horizons, ergosphere and inner stable circular orbits in the framework of ...
Gulzoda Rakhimova +4 more
doaj +1 more source