Relativisitic non-pascalian fluid as a density contribution Justo Ospino, Daniel Suárez-Urango, Laura M. Becerra, H. Hernández and Luis A. Núñez Eur. Phys. J. C, 85 4 (2025) 412 Published online: 13 April 2025 DOI: 10.1140/epjc/s10052-025-14132-x