从 H(z)参数数据看以外物理学的可能证据

IF 1.9 4区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

New Astronomy Pub Date : 2023-12-21 DOI:10.1016/j.newast.2023.102180

Rong-Jia Yang

引用次数: 0

摘要

我们利用微积分中的拉格朗日均值定理分析了具有某些条件的 H(z) 参数数据。我们发现(1）在红移范围（0.38,0.59）内存在1 σ置信度的减速相；（2）在红移范围（1.3,1.53）内的某些红移下，暗能量状态方程在1 σ置信度下可能小于-1；（3）在红移范围（1.037,1.944）内存在1 σ置信度的加速相。这些结果为超越ΛCDM的物理学提供了可能的证据。

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Possible evidences from H(z) parameter data for physics beyond ΛCDM

We analyze $H (z)$ parameter data with some conditions by using Lagrange mean value theorem in Calculus. We find that: (1) there exists decelerated phase at 1 $σ$ confidence level in the redshift range $(0.38, 0.59)$ ; (2) the equation of state of dark energy may be less than $- 1$ at 1 $σ$ confidence level at some redshifts in the redshift range $(1.3, 1.53)$ ; (3) there exists accelerated phase at 1 $σ$ confidence level in the redshift range $(1.037, 1.944)$ . These results may provide possible evidences for physics beyond $Λ$ CDM.

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来源期刊

New Astronomy 地学天文-天文与天体物理

CiteScore

4.00

自引率

10.00%

发文量

109

审稿时长

13.6 weeks

期刊介绍： New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation. New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.

从 H(z)参数数据看 以外物理学的可能证据

摘要

从 H(z)参数数据看以外物理学的可能证据