Abstract
This paper investigates the behavior of charged compact stars in the modified f(R,ϕ) theory of gravity, where R and ϕ denote the Ricci scalar and scalar field respectively. The modified field equations of f(R,ϕ) theory of gravity are solved by using Krori–Barua metric (Krori and Barua, 1975), which describes the geometry of the inner space. The physical aspects like energy density, radial pressure, tangential pressure, anisotropic factor, mass–radius relationship, compactness parameter, surface redshift have been analyzed. Furthermore, the Tolman–Oppenheimer–Volkoff equation, Abreu’s criterion (Abreu et al., 2007) and relativistic adiabatic index have been checked to investigate the stability of the model. The compact stars like Her X - I, Cen X - III, EXO 1785 - 248 and LMC X - IV are used for the current analysis. Moreover, energy conditions have been investigated for all these candidates to observe the viability of the model. Observing all these aspects, our proposed model for charged compact stars is stable and viable in the background f(R,ϕ) theory of gravity.
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