Results 61 to 70 of about 3,411,153 (359)
Self-Interacting Dark Sectors in Supernovae Can Behave as a Relativistic Fluid. [PDF]
Physical Review LettersWe revisit supernova (SN) bounds on a hidden sector consisting of millicharged particles χ and a massless dark photon. Unless the self-coupling is fine-tuned to be small, rather than exiting the SN core as a gas, the particles form a relativistic fluid ...
D. Fiorillo, E. Vitagliano
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Observational constraints and predictions of the interacting dark sector with field-fluid mapping [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We consider an interacting field theory model that describes the interaction between dark energy-dark matter interaction. Only for a specific interaction term, this interacting field theory description has an equivalent interacting fluid description. For
Joseph P. Johnson +2 more
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Physics Letters B, 2007 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dymnikova, Irina, Galaktionov, Evgeny
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Dark radiation from a unified dark fluid model [PDF]
Progress of Theoretical and Experimental Physics, 2014 We present a unified dark fluid model to describe the possible evolutionary behavior of $ N_\mathrm{eff}$ in dark radiation. This model can be viewed as an interacting model for the dark sectors, in which dark matter interacts with dark radiation. We show that the evolution of $ N_\mathrm{eff}$ can be nicely explained without some drawbacks, such as ...
Geng, Chao-Qiang +2 more
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Supermassive black holes surrounded by dark matter modeled as anisotropic fluid: epicyclic oscillations and their fitting to observed QPOs [PDF]
, 2021 Recently introduced exact solution of the Einstein gravity coupled minimally to an anisotropic fluid representing dark matter can well represent supermassive black holes in galactic nuclei with realistic distribution of dark matter around the black hole,
Zdenvek Stuchl'ik, J. Vrba
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Darkness without dark matter and energy – generalized unimodular gravity
Physics Letters B, 2017 We suggest a Lorentz non-invariant generalization of the unimodular gravity theory, which is classically equivalent to general relativity with a locally inert (devoid of local degrees of freedom) perfect fluid having an equation of state with a constant ...
A.O. Barvinsky, A.Yu. Kamenshchik
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A Newtonian Approach to the Cosmological Dark Fluids [PDF]
, 2015 13 pages, To be published in 'Selected Topics of Computational and Experimental Fluid Mechanics' Springer Book Series: Environmental Science and Engineering: Environmental ...
Aviles, Alejandro +4 more
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Observational constraints on the cosmology with holographic dark fluid [PDF]
Physics of the Dark Universe, 2021 We consider the holographic Friedman-Robertson-Walker (hFRW) universe on the 4-dimensional membrane embedded in the 5-dimensional bulk spacetime and fit the parameters with the observational data. In order to fully account for the phenomenology of this scenario, we consider the models with the brane cosmological constant and the negative bulk ...
Da Huang +4 more
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Fluids of Vortices And Dark Matter
, 2000 REVTeX, 9 PostScript figures with ...
Bonjour, Filipe, Letelier, P. S.
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Making (dark matter) waves: Untangling wave interference for multi-streaming dark matter
The Open Journal of Astrophysics, 2022 The classical dynamics of collisionless cold dark matter, commonly described by fluid variables or a phase-space distribution, can be captured in a single semiclassical wavefunction.
Alex Gough, Cora Uhlemann
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