Decoupled Quark Stars Relativistic Models in the Regime of Self-interacting Brans-Dicke Gravity
arXiv:2307.08005 · doi:10.1016/j.cjph.2022.09.022
Abstract
In this work, we generate two static anisotropic solutions for a sphere containing quark matter in the framework of self-interacting Brans-Dicke theory. For this purpose, we add an anisotropic source in the seed distribution and decouple the field equations through deformation in the radial metric function. As a result of this transformation, the field equations are disintegrated into two systems which separately include the effects of isotropic and anisotropic sources. The system related to the additional source is solved via the MIT bag model equation of state. We consider Tolman V spacetime and Karmarkar condition to formulate two solutions for the isotropic sector which are extended to the anisotropic domain via decoupling technique. The junction conditions at the boundary determine the unknown parameters in terms of mass and radius of the spherical object. We investigate the viability and stability of the constructed strange star models in the presence of massive scalar field corresponding to three strange star candidates: Her X-1, PSR J1614-2230 and 4U 1608-52. It is concluded that the anisotropic models are well-behaved as they fulfill the necessary requirements for lower as well as higher values of the decoupling parameter.
arXiv comment38 pages, 22 figures
References in corpus (34)
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- GW190425: Observation of a Compact Binary Coalescence with Total Mass
- Evidence for quark-matter cores in massive neutron stars
- The Confrontation between General Relativity and Experiment
- Maximum bounds on the surface redshift of anisotropic stars
- Anisotropic solutions by gravitational decoupling
- Decoupling gravitational sources in general relativity: the extended case
- On the gravitational field of a mass point according to Einstein's theory
- All static spherically symmetric perfect fluid solutions of Einstein's Equations
- SN 2006gy: An extremely luminous supernova in the galaxy NGC 1260
- Searching Exact Solutions for Compact Stars in Braneworld: a conjecture
- Gravitational decoupled anisotropies in compact stars
- Is RX J185635-375 a Quark Star?
- Tolman IV solution in the Randall-Sundrum Braneworld
- Anisotropic Compact stars with variable cosmological constant
- A new family of analytical anisotropic solutions by gravitational decoupling
- Gravitational Decoupled Charged Anisotropic Spherical Solutions
- Gravitational decoupling for axially symmetric systems and rotating black holes
- Anisotropic Tolman VII solution by gravitational decoupling
- On Some Exponential Potentials for a Cosmological Scalar Field as Quintessence
- A causal Schwarzschild-de Sitter interior solution by gravitational decoupling
- PPN Parameter and Solar System Constraints of Massive Brans-Dicke Theories
- Anisotropic fluid spheres of embedding class one using Karmarkar condition
- Slowly rotating neutron stars in scalar-tensor theories with a massive scalar field
- Scaling Solutions and reconstruction of Scalar Field Potentials
- Gravitational Decoupled Anisotropic Solutions in Gravity
- Rapidly rotating neutron stars with a massive scalar field - structure and universal relations
- Anisotropic Tolman V Solution by Minimal Gravitational Decoupling Approach
- Gravitational collapse of homogeneous scalar fields
- Anisotropic strange stars in the Einstein-Maxwell spacetime
- Static and slowly rotating neutron stars in scalar-tensor theory with self-interacting massive scalar field
- Computation of the structure of magnetized strange quark star
- Effects of Charge on Gravitational Decoupled Anisotropic Solutions in f(R) Gravity
- Moment of inertia - mass universal relations for neutron stars in scalar-tensor theory with self-interacting massive scalar field