Expansion-free dissipative fluid spheres: Analytical models

Abstract

We search exact analytical solutions of spherically symmetric dissipative fluid distributions satisfying the vanishing expansion condition (vanishing expansion scalar $\Theta$). To do so we shall impose additional restrictions allowing the integration of the field equations. A detailed analysis of the obtained solutions, their prospective applications to astrophysical scenarios, as well as alternative approaches to obtain new solutions, are discussed.

12 pages Latex. arXiv admin note: text overlap with arXiv:2206.02143. Typos corrected. Published in Symmetry (Special Issue Symmetry in Cosmology and Gravity: Topic and Advance)