Study of anisotropic and non-uniform Gravastars by gravitational decoupling in f(R,T) gravity
Feb, 2022Published in:
- Annals Phys. 439 (2022) 168769
- Published: Apr, 2022and
- Published: Feb, 2022
DOI:
- 10.1016/j.aop.2022.168769 (publication)
Citations per year
Abstract: (Elsevier Inc.)
Adopting gravitational decoupling through minimal geometric deformation (MGD) procedure, we develop an analytical version of gravastar model with non-uniform and anisotropic features, in the framework of gravity. This new non-uniform model describes an ultracompact stellar structure of radius , whose interior solution smoothly joins a conformally deformed Schwarzschild exterior solution, and also it is matched to the standard Schwarzschild exterior solution under some restrictions on coupling constant . The constructed solution presents a family of stellar models satisfying some of the fundamental properties of a stable configuration, including a positive energy density everywhere with monotonically decreasing behavior from the center to surface. Besides, a non-uniform pressure is observed with monotonic behavior. All the energy conditions except the strong one are satisfied inside the ultracompact stellar configuration for all the values of coupling constant , which are compatible with regularity condition. •Gravastar model with non-uniform and anisotropic features is discussed in f(R,T) theory•This model describes an ultracompact stellar structure satisfying the matching conditions•Stellar models meet some of the fundamental properties of a stable configuration•All the energy conditions except the strong one are satisfied inside the ultracompact stellar- Gravastar
- Gravitational decoupling
- Analytical solutions
- Anisotropy
- Modified gravity theories
References(0)
Figures(0)
Loading ...