Gravastar models in braneworld scenario: The influence of Durgapal-V metric potential

Abstract

This study aims to elucidate the nature of isotropic static spherically symmetric gravastars within the framework of braneworld gravity. Focusing on the dimensionally reduced Randall–Sundrum II scenario with positive brane tension, we utilize a physically acceptable Durgapal-V type metric potential that ensures non-singularity and stability. In alignment with the Mazur-Mottola conjecture, we derive the expressions for Durgapal-V parameters by applying junction conditions derived from a Schwarzschild vacuum, excluding a cosmological constant. Our framework envisions the inner area filled with a substance resembling an exotic energy field, while the surrounding layer is described as an ultrarelativistic stiff fluid. Through this model, we analyze multiple physical attributes of gravastars, including spatial dimensions, energy contained in the shell, entropy measurements, surface redshift due to gravitational effects, and the mass of the inner region and its thin envelope. The results provide fruitful insights into gravastars under Durgapal-V metric functions in the braneworld scenario.