Features of galactic halo in a brane world model and observational constraints

TL;DR

This paper explores the effects of a 5d bulk Weyl radiation on the galactic halo within a brane world model, analyzing observational constraints from rotation curves and lensing, and comparing with scalar field models.

Contribution

It introduces a new brane world model solution and assesses its observational viability through rotation curve and lensing data, comparing it with scalar field models.

Findings

The model exhibits physically interesting properties.

Constraints from rotation curves and lensing are compatible with the model.

Comparison shows differences with scalar field models.

Abstract

Several aspects of the 4d imprint of the 5d bulk Weyl radiation are investigated within a recently proposed model solution. It is shown that the solution has a number of physically interesting properties. The constraints on the model imposed by combined measurements of rotation curve and lensing are discussed. A brief comparison with a well known scalar field model is also given.