Analytical Models of Hyperbolical Gravitational Sources

IF 1.8 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS
Z. Yousaf, M. Z. Bhattti, H. Asad
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引用次数: 0

Abstract

This paper aims to conduct an extensive examination of hyperbolically symmetrical static fluid distributions, wherein a precise analysis of their physical characteristics is carried out in the background of modified [Formula: see text] gravity, where [Formula: see text] and [Formula: see text] stands for Gauss Bonnet invariant and energy-momentum trace, respectively. The outcomes reveal that the energy density exhibits negative value, thus implying that any utilization of such fluids necessitates extremely demanding circumstances where quantum effects would be significantly influential. Furthermore, it has been determined that these fluid distributions cannot take the vicinity surrounding their central point of symmetry and leave behind an empty vacuum cavity in its place. Additionally, an appropriate definition for mass function and the complexity factor is determined. Eventually, we exhibit a broad strategy for accomplishing particular solutions and showcase several instances of exact analytical solutions in the presence of [Formula: see text] correction terms.
双曲型引力源的解析模型
本文旨在对双曲对称静态流体分布进行广泛的考察,其中在修正[公式:见文]重力背景下对其物理特性进行了精确的分析,其中[公式:见文]和[公式:见文]分别代表高斯博内不变量和能量动量迹。结果表明,能量密度呈现负值,这意味着任何对此类流体的利用都必须在量子效应具有显著影响的极其苛刻的环境中进行。此外,已经确定,这些流体分布不能取其对称中心点周围的邻近区域,而在其位置留下一个空的真空腔。此外,还确定了质量函数和复杂度因子的适当定义。最后,我们展示了实现特定解的广泛策略,并展示了在[公式:见文本]校正项存在下的精确解析解的几个实例。
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来源期刊
International Journal of Modern Physics D
International Journal of Modern Physics D 地学天文-天文与天体物理
CiteScore
3.80
自引率
9.10%
发文量
181
审稿时长
4-8 weeks
期刊介绍: Gravitation, astrophysics and cosmology are exciting and rapidly advancing fields of research. This journal aims to accommodate and promote this expansion of information and ideas and it features research papers and reviews on theoretical, observational and experimental findings in these fields. Among the topics covered are general relativity, quantum gravity, gravitational experiments, quantum cosmology, observational cosmology, particle cosmology, large scale structure, high energy astrophysics, compact objects, cosmic particles and radiation.
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