Dark Energy Stars in Tolman-Kuchowicz spacetime in the context of Einstein Gravity

Abstract

Dark energy is the component in the present Universe with the greatest abundance, and it is responsible for the accelerating expansion of the Universe. As a result, dark energy is likely to interact with any compact astrophysical object [Muhammad F.A.R. Sakti and Anto Sulaksono, {\it Phys. Rev. D} {\bf 103}, 084042 (2021)]. In present paper, we propose a model for a dark energy star made up of dark and ordinary matter in which the density of dark energy is proportional to the density of isotropic perfect fluid matter. In the context of general relativity, the model is derived in the curved Tolman-Kuchowicz spacetime geometry [Tolman, Phys Rev 55:364, (1939); Kuchowicz, Acta Phys Pol 33:541, (1968)]. Here, we look at how dark energy affects stellar mass, compactness, and equilibrium etc. The physical parameters of the model e.g., pressure, density, mass function, surface redshift etc. are investigated, and the stability of stellar configuration is studied in detail. The model has interesting properties because it meets all energy criteria and is free from central singularities. The maximum allowable mass has been obtained from our model with the help of $M-R$ diagram. We analyse many physical properties of the model and checked that it meets all regularity constraints, is stable, and therefore physically realistic.

15 Pages, 10 Figures

References in corpus (12)

• Shapiro delay measurement of a two solar mass neutron star
• Bounds on the basic physical parameters for anisotropic compact general relativistic objects
• Singularity-free solutions for anisotropic charged fluids with Chaplygin equation of state
• Anisotropic strange star with Tolman-Kuchowicz metric under $f(R,T)$ gravity
• Kerr-Newman-AdS Black Hole In Quintessential Dark Energy
• Charged compact star in $f(R,T)$ gravity in Tolman-Kuchowicz spacetime
• Van der Waals quintessence stars
• Relativistic strange stars in Tolman-Kuchowicz spacetime
• Exact dark energy star solutions
• The Dark Energy Star and Stability analysis
• Wormhole supported by dark energy admitting conformal motion
• Dark Energy Stars with Phantom Field

Cited by in corpus (8)

• Radial pulsations, moment of inertia and tidal deformability of dark energy stars
• Effect of rainbow function on the structural properties of dark energy star
• Effect of massive graviton on dark energy star structure
• Dark Energy Star in Gravity's Rainbow
• Charged strange star coupled to anisotropic dark energy in Tolman-Kuchowicz spacetime
• Kuchowicz gravastars in the braneworld formalism
• Geometry of static $w=-1/5$ perfect fluid spheres in general relativity
• Lorentzian manifolds equipped with a concircularly semi-symmetric metric connection