site stats

Interacting dark energy in a closed universe

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 https://robertsbrothersllc.com

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

Origin of the Universe, Dark Energy, and Dark Matter

Category:The dark energy–dominated Universe - ScienceDirect

Tags:Interacting dark energy in a closed universe

Interacting dark energy in a closed universe

Animals Free Full-Text Biochemical Properties of Black and …

Nettet12. sep. 2024 · To define time in the homogeneous anisotropic Bianchi-IX model of the universe, we propose a classical equation of motion of the proper time of the universe …

Interacting dark energy in a closed universe

Did you know?

Nettet12. aug. 2024 · Interacting dark energy in the early 2024s: a promising solution to the. and cosmic shear tensions. We examine interactions between dark matter and dark … Nettet11. apr. 2024 · A closed Universe still appears only with a positive k, ... is seen for certain solutions which allows for more freedom in the exploration of the expansion history of the Universe. Early dark energy ... J. Beltrán Jiménez, L. Heisenberg, Derivative self-interactions for a massive vector field. Phys. Lett. B 757, 405–411 (2016).

Nettet2 dager siden · The recent analysis suggests that the dark matter was lumpy enough to fit with the standard model of cosmology, which relies on Einstein’s theory of gravity. Eric Baxter, an astronomer at the ... NettetWe investigate the new agegraphic dark energy (NADE) model with power-law corrected entropy in the framework of Hoyrava-Lifshitz cosmology. For a non-flat universe …

Nettet8. jan. 2024 · 2024-H 0 Odyssey: Closed, Phantom and Interacting Dark Energy Cosmologies W eiqiang Y ang, 1, ∗ Supriya Pan, 2, † Eleonora Di Valentino, 3, ‡ Olga … Nettet14. feb. 1982 · A closed universe with radiation and matter begins expanding from a physical singularity, then recollapses and ends by contracting to another physical singularity. The Penrose diagram for a closed FRW universe filled with matter and radiation is plotted in the right panel of Fig. 9.

Nettet25. feb. 2024 · Here we show that interacting dark energy (IDE) models can ease the discrepancies between Planck and supernovae Ia data in a closed Universe, leading to a preference for both a coupling and a curvature different from zero above the 99 per …

Nettet24. aug. 2008 · The interacting holographic dark energy model in a spatially closed universe was investigated in Ref. [36] where an additional requirement that the entropy … god\u0027s recreation of the new dayNettetIn light of these two recent appealing scenarios, we consider here an interacting dark matter-dark energy model with a non-zero spatial curvature component and a freely varying dark energy equation of state in both the quintessential and phantom regimes. book of mormon scripture chaseNettet5 timer siden · Tom Somerset-How, 40, who has cerebral palsy and is partially blind, told Portsmouth Crown Court he did send messages to other women while his wife and carer were allegedly having an affair. book of mormon reviews nycNettet6. okt. 2024 · In light of these two recent appealing scenarios, we consider here an interacting dark matter-dark energy model with a non-zero spatial curvature … god\\u0027s reckless love lyricsNettet17. feb. 2014 · Dark energy with negative pressure and positive energy density is believed to be responsible for the accelerated expansion of the universe. Quite a few theoretical models of dark energy are based on tachyonic fields interacting with itself and normal (bradyonic) matter. Here, we propose an experimental model of tachyonic dark … god\u0027s redemption planNettetAn Interacting Two-Fluid Scenario for Dark Energy in FRW Universe Hassan Amirhashchi1 , Anirudh Pradhan2 and Bijan Saha3 1 Department of Physics, Islamic … god\u0027s reckless love lyricsNettetWe find that the dynamics of a universe that contains interaction in the dark sector can differ significantly from the Standard Cosmological Model. Keywords: Expanding universe deceleration parameter cosmological acceleration dark energy PACS: 98.80.-k Figures References Related Details Vol. 24, No. 03 Metrics History Received 18 August 2014 god\\u0027s redemption plan