We employ the minimal geometric deformation approach to gravitational decoupling (MGD- decoupling) in order to build an exact anisotropic version of the Schwarzschild interior solution in a space-time with cosmological constant. Contrary to the well-known Schwarzschild interior, the matter density in the new solution is not uniform and possesses subluminal sound speed. It therefore satisfies all standard physical requirements for a candidate astrophysical object.
@article{arxiv.1905.10162,
title = {A causal Schwarzschild-de Sitter interior solution by gravitational decoupling},
author = {L. Gabbanelli and J. Ovalle and A. Sotomayor and Z. Stuchlik and R. Casadio},
journal= {arXiv preprint arXiv:1905.10162},
year = {2019}
}