Magnetic Field of a Compact Spherical Star under f(R,T) Gravity

Abstract

We present the interior solutions of distributions of magnetised fluid inside a sphere in $f(R,T)$ gravity. The magnetised sphere is embedded in an exterior Reissner-Nordström metric. We assume that all physical quantities are in static equilibrium. The perfect fluid matter is studied under a particular form of the Lagrangian density $f(R,T)$. The magnetic field profile in modified gravity is calculated. Observational data of neutron stars are used to plot suitable models of magnetised compact objects. We reveal the effect of $f(R,T)$ gravity on the magnetic field profile, with application to neutron stars, especially highly magnetized neutron stars found in X-ray pulsar systems. Finally the effective potential $V_{\mathrm{eff}}$ and innermost stable circular orbits, arising out of motion of a test particle of negligible mass influenced by attraction or repulsion from the massive center, are discussed.

arXiv comment7 pages, 5 figures

References in corpus (24)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• f(R,T) gravity
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• BVRI Light Curves for 22 Type Ia Supernovae
• Prospects for probing the dark energy via supernova distance measurements
• Comparison of the Legacy and Gold SnIa Dataset Constraints on Dark Energy Models
• Axisymmetric magnetic fields in stars: relative strengths of poloidal and toroidal components
• A class of relativistic stars with a linear equation of state
• Compact stars in $f(R,T)$ gravity
• Cosmological solutions from Induced Matter Model applied to 5D f(R,T) gravity and the shrinking of the extra coordinate
• General Relativistic Electromagnetic Fields of a Slowly Rotating Magnetized Neutron Star. I. Formulation of the equations
• Particle Motion around Black Hole in Horava-Lifshitz Gravity
• Anisotropic Universe Models with Perfect Fluid and Scalar Field in f(R,T) Gravity
• Inducing chaos by breaking axial symmetry in a black hole magnetosphere
• Energy Extraction and Particle Acceleration Around Rotating Black Hole in Horava-Lifshitz Gravity
• Particle motion in Horava-Lifshitz black hole space-times
• Magnetic Fields of Spherical Compact Stars in Braneworld
• Rotating compact objects with magnetic fields
• Oblique magnetic fields and the role of frame dragging near rotating black hole
• Generation of strong magnetic fields in dense quark matter driven by the electroweak interaction of quarks
• Quantum Interference Effects in Horava-Lifshitz Gravity
• Relativistic Models Of A Class Of Compact Objects

Cited by in corpus (6)

• Relativistic Krori-Barua Compact Stars in $f(R,T)$ Gravity
• Anisotropic stars in modified gravity: An extended gravitational decoupling approach
• Investigating the physical and geometrical parameters of the cosmological models with anisotropic background
• Thermodynamics of the system of massive Dirac fermions in a uniform magnetic field
• Magnetized cosmological model with variable deceleration parameter
• Dynamics of quasi de Sitter and linear combination of exponential models in extended gravity