弗里德曼宇宙论中作为暗能量的扭转的运动学重构

IF 5.9 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Journal of Cosmology and Astroparticle Physics Pub Date : 2025-03-19 DOI:10.1088/1475-7516/2025/03/034
A.M. Vicente, J.F. Jesus and S.H. Pereira
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引用次数: 0

摘要

在本文中,我们研究了时空扭曲在宇宙膨胀中的影响,作为暗能量的候选。利用Ia型超新星的观测数据、哈勃参数和重子声学振荡的测量数据,重构了沿宇宙演化的扭转函数,进行了分析。我们用运动学模型对共动距离和哈勃参数进行了参数化,模型的自由参数受观测数据的约束。利用运动学参数化直接从数据中获得扭转函数的重建。
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Kinematic reconstruction of torsion as dark energy in Friedmann cosmology
In this paper we study the effects of torsion of space-time in the expansion of the Universe as a candidate to dark energy. The analysis is done by reconstructing the torsion function along cosmic evolution by using observational data of Supernovae type Ia, Hubble parameter and Baryon Acoustic Oscillation measurements. We have used a kinematic model for the parameterization of the comoving distance and the Hubble parameter, then the free parameters of the models are constrained by observational data. The reconstruction of the torsion function is obtained directly from the data, using the kinematic parameterizations.
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来源期刊
Journal of Cosmology and Astroparticle Physics
Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理
CiteScore
10.20
自引率
23.40%
发文量
632
审稿时长
1 months
期刊介绍: Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.
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