Compact object with a local dark energy shell

We investigate some models of compact objects in the general relativity theory with cosmological constant $\Lambda$, based on two density profiles, one them attributed to Stewart and other Durgapal Bannerji, proposed literature model "neutron stars". For them, a nonlocal equation state is obtained as consequence chosen metric. In another direction, we obtain solution for configurations null radial pressure. The first (based Stewart's profile) turned out be most interesting, since surprisingly it admits presence dark energy interior star, outermost layers, certain range mass-radius ratio $\gamma$. This independent constant, tangential pressure fluid sufficiently negative. Still this case, values $\gamma$, all conditions are satisfied. Another advantage model, well that profile Bannnerji existence intervals $\gamma$ compatible physically acceptable $\Lambda < 0$, = 0$ > which also allowed us analyze influence $\Lambda$ behavior respect conditions. configuration studied here, $P_r=0$, only allow solutions $\Lambda<0$, order ensure positive mass object satisfy specific