远平行重力下具有幂律体积膨胀的体粘弦宇宙学模型

IF 0.6 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Astrophysics Pub Date : 2023-04-14 DOI:10.1007/s10511-023-09774-2

Kalpana Pawar, A. K. Dabre

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引用次数: 1

摘要

本文研究了包含一维宇宙弦的体积粘性流体存在时空间均质和各向异性的bianchi型V宇宙学模型。我们得到了考虑宇宙幂律体积膨胀和f (T) = T形式的高度非线性微分场方程的精确解。我们讨论了所建模型的一些物理和运动学特性，并用图形表示了它们。有趣的是，所得到的模型与最近的观测数据很相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bulk Viscous String Cosmological Model with Power Law Volumetric Expansion in Teleparallel Gravity

In this paper, we have investigated the Bianchi-type V cosmological model which is spatially homogeneous and anisotropic in presence of bulk viscous fluid containing one-dimensional cosmic string. We have obtained the exact solutions of highly non-linear differential field equations considering the power-law volumetric expansion of the universe and f (T) = T formalism. Some physical and kinematical properties of the constructed model have been discussed and presented graphically and it is interesting to note that the resultant model resembles the recent observational data.

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来源期刊

Astrophysics 地学天文-天文与天体物理

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astrophysics (Ap) is a peer-reviewed scientific journal which publishes research in theoretical and observational astrophysics. Founded by V.A.Ambartsumian in 1965 Astrophysics is one of the international astronomy journals. The journal covers space astrophysics, stellar and galactic evolution, solar physics, stellar and planetary atmospheres, interstellar matter. Additional subjects include chemical composition and internal structure of stars, quasars and pulsars, developments in modern cosmology and radiative transfer.