Galactic rotation curves and strange quark matter with observational constraints

TL;DR

This paper models galactic core spacetime using general relativity with strange quark matter, analyzing stability of orbits and observational constraints on the Bag Constant.

Contribution

It introduces a novel approach to modeling galactic cores with strange quark matter and explores the role of the Bag Constant in orbit stability.

Findings

Bag Constant is crucial for orbit stability.

Derived limits for Bag Constant in galactic halo.

Provided energy density and pressure profiles for quark matter.

Abstract

We obtain the space time of the galactic core in the framework of general relativity by taking the flat rotational curve as input and considering the matter content in the galactic core region as strange quark matter. We also obtain the energy density, radial and tangential pressures of the core strange quark matter. Significantly we have shown that Bag Constant takes an important role to stabilize the circular orbit of the test particles. We also give a limit of the Bag Constant for the existence of quark matter in the galactic halo region.