Modified Finch and Skea stellar model compatible with observational data
arXiv:1411.5674 · doi:10.1007/s10509-014-2207-1
Abstract
We present a new class of solutions to the Einstein's field equations corresponding to a static spherically symmetric anisotropic system by generalizing the ansatz of Finch and Skea [Class. Quantum Grav. 6 (1989) 467] for the gravitational potential . The anisotropic stellar model previously studied by Sharma and Ratanpal (2013) [Int. J. Mod. Phy. D 13 (2013) 1350074] is a sub-class of the solutions provided here. Based on physical requirements, regularity conditions and stability, we prescribe bounds on the model parameters. By systematically fixing values of the model parameters within the prescribed bound, we demonstrate that our model is compatible with the observed masses and radii of a wide variety of compact stars like 4U 1820-30, PSR J1903+327, 4U 1608-52, Vela X-1, PSR J1614-2230, SAX J1808.4-3658 and Her X-1.
This Article is accepted for publication in Astrophys. Space Sci -- It contains 7 Figures, 1 Table, 10 Pages
References in corpus (22)
- Shapiro delay measurement of a two solar mass neutron star
- Physical Acceptability of Isolated, Static, Spherically Symmetric, Perfect Fluid Solutions of Einstein's Equations
- Refined Neutron-Star Mass Determinations for Six Eclipsing X-Ray Pulsar Binaries
- Strange Stars with Realistic Quark Vector Interaction and Phenomenological Density-dependent Scalar Potential
- The Distance, Mass, and Radius of the Neutron Star in 4U 1608-52
- On the nature and evolution of the unique binary pulsar J1903+0327
- Strange star equation of state fits the refined mass measurement of 12 pulsars and predicts their radii
- Charged anisotropic matter with linear or nonlinear equation of state
- Charged anisotropic matter with linear equation of state
- A class of relativistic stars with a linear equation of state
- Anisotropic Stars II : Stability
- Some charged polytropic models
- The Mass of the Compact Object in the X-Ray Binary Her X-1/HZ Her
- Regular models with quadratic equation of state
- Charged anisotropic models for quark stars
- Anisotropic Stars: Exact Solutions and Stability
- General Relativistic Stars : Polytropic Equations of State
- Optical spectroscopy and photometry of SAX J1808.4-3658 in outburst
- Charged analogue of Finch-Skea stars
- Analytical models for quark stars
- Spherically symmetric relativistic stellar structures
- Finch-Skea star in (2+1) dimensions
Cited by in corpus (21)
- Analytical study of anisotropic compact star models
- Viable and Stable Compact Stars in Theory
- A family of Finch and Skea relativistic stars
- Finch-Skea star model in f(R, T ) theory of gravity
- Anisotropic extension of Finch and Skea stellar model
- Anisotropic Compact Star Model Satisfying Karmarkar Conditions
- Linear and Riccati equations in generating functions for stellar models in general relativity
- A New Anisotropic Compact Star Model having Matese \& Whitman Mass Function
- New charged anisotropic compact models
- Relativistic Polytropic Models of Charged Anisotropic Compact Object
- Anisotropic Compacts Stars on Paraboloidal Spacetime with Linear Equation of State
- Anisotropic Star on Pseudo-Spheroidal Spacetime
- Compact Objects admitting Finch-Skea Symmetry in Gravity
- New anisotropic star solutions in mimetic gravity
- Charged compact stellar model in Finch-Skea spacetime
- Compact stellar model in presence of pressure anisotropy in modified Finch Skea spacetime
- New charged anisotropic solution on paraboloidal spacetime
- Compact stars on pseudo-spheroidal spacetime compatible with observational data
- Anisotropic Approach: Compact star as generalized Model
- Anisotropic Compact Star Model on Finch-Skea Spacetime
- Compact stellar model in higher torsion gravitational theory