Compact objects in AdS spacetime with exponential, quadratic and power-law bosonic mass profiles

TL;DR

This study investigates the physical properties and stability of bosonic compact stars in AdS spacetime with various bosonic mass profiles, confirming their stability and observational consistency.

Contribution

It introduces new models of bosonic compact stars with exponential, quadratic, and power-law mass profiles in AdS spacetime, analyzing their stability and physical characteristics.

Findings

Mass increases monotonically with radius within observational limits.

All models satisfy Buchdahl's limit and energy conditions, ensuring stability.

Enhanced mass concentration occurs near the outer stellar region.

Abstract

This paper reports a study on the formation and physical characteristics of compacts stars in AdS spacetime within the framework of Bose-Einstein Condensate. Considering a Bose-Einstein condensate background at zero temperature this study works on total mass, compactness, surface redshift, density, pressure, adiabatic index and energy conditions. The bosonic mass has been taken as three distinct functions of radial coordinate in exponential form, quadratic form, and power law form. Our results reveal that the mass increases monotonically with radius and remains within observational limit for all the observationally motivated compact-star mass scales considered in this study and the compactness for all the cases is within Buchdahl's limit and hence it was confirmed that the configuration correspondence to compact stellar configuration models rather than forming a collapsing model. Both NEC and SEC are satisfied throughout the stellar interior and hence dynamical stability is ensured. Furthermore, the study also confirms the enhanced mass concentration near the outer region in the stellar models under consideration. Hence present study explores the physical properties and stability of compact bosonic configurations in AdS spacetime within a holographically motivated framework. The present analysis is primarily phenomenological and qualitative in nature. The models considered here are intended to explore possible behaviours of self-gravitating bosonic configurations in AdS geometry and are not proposed as fully realistic neutron-star models.