Effect of rainbow function on the structural properties of dark energy star

Abstract

Confirming the existence of compact objects with a mass greater than $2.5M_{\odot }$ by observational results such as GW190814 makes that is possible to provide theories to justify these observational results using modified gravity. This motivates us to use gravity's rainbow, which is the appropriate case for dense objects, to investigate the dark energy star structure as a suggested alternative case to the mass gap between neutron stars and black holes in the perspective of quantum gravity. Hence, in the present work, we derive the modified hydrostatic equilibrium equation for an anisotropic fluid, represented by the extended Chaplygin equation of state in gravity's rainbow. Then, for two isotropic and anisotropic cases, using the numerical solution, we obtain energy-dependent maximum mass and its corresponding radius, and the other properties of the dark energy star including the pressure, energy density, stability, etc. In the following, using the observational data, we compare the obtained results in two frameworks of general relativity and gravity's rainbow.

12 pages, 8 figures, 4 tables

References in corpus (16)

• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• Sound Speeds, Cracking and Stability of Self-Gravitating Anisotropic Compact Objects
• Non-radial oscillations of anisotropic neutron stars in the Cowling approximation
• Absence of an Effective Horizon for Black Holes in Gravity's Rainbow
• Modified Chaplygin Gas Cosmology
• Geodesic Structure of the Schwarzschild Black Hole in Rainbow Gravity
• Entropy and temperature of black holes in a gravity's rainbow
• Dark Energy Stars in Tolman-Kuchowicz spacetime in the context of Einstein Gravity
• Expansion of magnetic neutron stars in an energy (in)dependent spacetime
• Exact dark energy star solutions
• Radial pulsations, moment of inertia and tidal deformability of dark energy stars
• Anisotropic magnetized neutron star
• Dark Energy Star in Gravity's Rainbow
• Revisiting Chaplygin gas cosmologies with the recent observations of high-redshfit quasars
• Compact stars in the Einstein dark energy model
• Three-dimensional energy-dependent $C$-metric: black hole solutions

Cited by in corpus (2)

• Accelerating AdS black holes in gravity's rainbow
• Normal oscillation modes and radial stability of neutron stars with a dark-energy core from the Chaplygin gas