arXiv subjects

Arash Hajibarat

Publications and source records attributed to Arash Hajibarat.

2 recordsLinked to original sources

arXiv2023

Three parameter metrics in the presence of a scalar field in four and higher dimensions

We investigate a class of three parameter metrics that contain both the $γ$-metric and Janis-Newman-Winicour (JNW) metric at special values of the parameters. To see the effect of the scalar field we derive some properties of this class of metrics such as curvature invariants, the effective potential, and epicyclic frequencies. We also introduce the five and higher dimensional forms of the class of metrics in the presence of a scalar field.

gr-qc↗

arXiv2022

$γ$-Metrics in Higher Dimensions

We introduce five and higher dimensional $γ$-metrics. The higher dimensional metrics are exact solutions of the vacuum field equations and represent new types of singularities. For dimensions $d>5$ we have obtained $γ$-metrics in flat coordinates. We obtain singularities of metrics and for a better understanding of geometrical and physical properties of the five dimensional metric, stable circular orbits are determined by means of the effective potential. Effect of the deformed parameter ($γ$) on redshift of the $γ$-metric are calculated. Interior solution for the five-dimensional $γ$-metric is also obtained.

gr-qc↗