2014/09/11 by P. Mafa Takisa, S. D. Maharaj, Subharthi Ray
Engineering · Physics and Astronomy · #Anisotropy #Compact star #Cosmology #Cosmology and Gravitation Theories #Equation of state #Exact solutions in general relativity #Fluid dynamics and aerodynamics studies #Nonlinear system #Pulsars and Gravitational Waves Research #Quadratic equation #Term (time) #gr-qc
paper · pdf · doi:10.1007/s10509-014-2120-7
published as Astrophys. Space Sci. 354: 463-470 (2014) · 8 pages, Submitted for publication
openalex publication_date 2014/09/11 · arxiv created 2014/12/28 · arxiv updated 2015/06/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We model a charged anisotropic relativistic star with a quadratic equation of state. Physical features of an exact solution of the Einstein-Maxwell system are studied by incorporating the effect of the nonlinear term from the equation of state. It is possible to regain the masses, radii and central densities for a linear equation of state in our analysis. We generate masses for stellar compact objects and perform a detailed study of PSR J1614-2230 in particular. We also show the influence of the nonlinear equation of state on physical features of the matter distribution. We demonstrate that it is possible to incorporate the effects of charge, anisotropy and a quadratic term in the equation of state in modelling a compact relativistic body.