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Browsing by Subject "Dark matter"

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nIFTy galaxy cluster simulations I: dark matter & non-radiative models

Author: Sembolini, F ; Yepes, CG ; Pearce, FR ; Knebe, A ; Kay, ST ; Power, C ; Cui, W ; Beck, AM ; Borgani, S ; Vecchia, CD ; Dave, R ; Elahi, PJ ; February, S ; Huang, S ; Hobbs, A ; Katz, N ; Lau, E ; McCarthy, IG ; Murante, G ; Nagai, D ; Nelson, K ; Newton, RDA ; Puchwein, E ; Read, JI ; Saro, A ; Schaye, J ; Thacker, RJ Date: Feb 2016 We have simulated the formation of a galaxy cluster in a cold dark matter universe using 13 different codes modelling only gravity and non-radiative hydrodynamics (RAMSES, ART, AREPO, HYDRA and nine incarnations of GADGET). This range of ... Read more
The role of dark energy in the evolution of the universe

Author: Greben, JM Date: Oct 2012 We consider the solution of the Einstein equations for a universe with a positive cosmological constant (or equivalently possessing a finite uniform vacuum/dark energy density) within a conformal metric, rather than the usual Robertson-Walker ... Read more
Role of energy conservation and vacuum energy in the evolution of the universe

Author: Greben, JM Date: Jun 2010 The author discusses a new theory of the universe in which the vacuum energy is classical origin and dominates the energy content of the universe. As usual, the Einstein equations determine the metric of the universe. However, the scale factor ... Read more

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Browsing by Subject "Dark matter"

Browsing by Subject "Dark matter"

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