New charged anisotropic solution in f(Q)-gravity and effect of non-metricity and electric charge parameters on constraining maximum mass of self-gravitating objects

In the present article, A new class of singularity-free charged anisotropic stars is derived in f ( Q )-gravity regime. To solve the field equations, we assume a particular form of anisotropy along with an electric field and obtain a new exact solution in f ( Q )-gravity. The explicit mathematical expression for the model parameters is derived by the smooth joining of the obtained solutions with the exterior Reissner–Nordstrom de-Sitter solution across the bounding surface of a compact star along with the requirement that the radial pressure vanishes at the boundary. We have modeled four self-gravitating pulsar objects such as LMC X-4, PSR J1903+327, PSR J1614-2230, and GW190814 in our current study and predict the radii of these objects that fall between 8 and 10 km. Furthermore, the physical validity of the solution is performed for self-gravitating object PSR J1614-2230 with mass 1.97± 0.04~M 1.97 ± 0.04 M ⊙ with radius 10 km. The solution successfully fulfills all the physical requirements along with the stability and hydrostatic equilibrium conditions for a well-behaved model. The non-metricity f ( Q )-parameter χ ₁ χ 1 and electric charge parameter η η play an important role in the maximum mass of the objects. The maximum mass increases when χ ₁ χ 1 and η η increase but a non-collapsing stable object can be obtained when χ ₁≤ 0.0205 χ 1 ≤ 0.0205 and η ≤ 0.0006 η ≤ 0.0006 .