Vacuum less global monopole in Brans-Dicke theory

TL;DR

This paper investigates the gravitational effects of a vacuumless global monopole within Brans-Dicke theory, revealing that it exerts an attractive force on test particles, contrasting with predictions from general relativity.

Contribution

It provides a novel analysis of vacuumless global monopoles in Brans-Dicke theory under weak field approximation, highlighting differences from general relativity.

Findings

Vacuumless global monopole exerts attractive gravity in Brans-Dicke theory.

Contrasts with the repulsive or neutral effects in general relativity.

Weak field approximation used for analytical solutions.

Abstract

In the present work, the gravitational field of a vacuum less global monopole has been investigated in Brans-Dicke theory under weak field assumption of the field equations. It has been shown that the vacuum less global monopole exerts attractive gravitational effects on a test particle. It is dissimilar to the case studied in general relativity.