Spherically symmetric regular Hayward black hole and its thermodynamic properties: Insights via gravitational decoupling

This paper develops some different viable extensions of the non-singular Hayward black hole under the presence of electromagnetic field. In this context, a well-known approach labeled as the gravitational decoupling is assumed which is mostly utilized to generalize the domain of the existing solutions. Initially, the isotropic fluid is assumed in the interior of a static sphere which is then extended by supplanted the anisotropic matter Lagrangian. The field equations now contain the effects of both sources and thus admit various unknowns, making them much complicated. These equations are then separated into two different systems by applying the MGD approach. The solution to first of them is figured out through the consideration of charged Hayward black hole, whereas some particular constraints are employed to tackle with the other system. Afterwards, a linear combination of both these solutions constructs the required extensions. Furthermore, a detailed graphical analysis is performed on the thermodynamical behavior of resulting solutions. Finally, stability analysis is also carried out through different approaches from which the stable regions are deduced corresponding to all three models.