Nettet13. okt. 2024 · Interacting dark energy (IDE) scenario assumes that there exists a direct interaction between dark energy and cold dark matter, but this interaction is hard to be tightly constrained by... NettetWe investigate the QCD ghost model of dark energy in the framework of Brans–Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans–Dicke theory. In this case we obtain the equation of state and the deceleration parameters and a differential equation governing the evolution of ghost energy density. Interestingly …
Chaotic universe model Scientific Reports - Nature
Nettet1. mar. 2005 · Abstract. In this paper we investigate the epochs in which the Universe started accelerating and when it began to become dark energy–dominated (i.e., the dynamics of the expansion of the Universe dominated by the dark energy). We provide analytic expressions to calculate the redshifts of these epochs as a function of density … Nettet1. mar. 2024 · We investigate the cosmological evolution of the Barrow holographic dark energy (BHDE) model in a non-flat universe using the FRW-metric with open and … god\\u0027s recompense
Universe Free Full-Text Energy Conservation Law in the Closed ...
Nettet28. okt. 2024 · A new theoretical study suggests gravity might also be fueling the mysterious “dark energy” speeding up cosmic expansion. Credit: NASA, ESA, Hubble and HST Frontier Fields For decades... Nettet12. apr. 2024 · But the only way dark matter is observed is indirectly, in the way its gravitational effects are observed at large scales. Enter the Atacama Cosmology Telescope, which more precisely dated the universe in 2024. The telescope’s map builds on a map of the universe’s matter released earlier this year, which was produced using … Nettet31. okt. 2024 · Here we show that Interacting Dark Energy (IDE) models can ease the discrepancies between Planck and Supernovae Ia data in a closed Universe. … god\\u0027s recreation christian center